Monday, February 24, 2020

Saison 2020 1.0

I've made only a few Saisons in the past.  In competition, they've not done all that well, I suppose because my taste in Saisons leans away from the overly dry, overly bitter end of the style toward something milder and more complex.  Today, I decided to review a bunch of winning Saison recipes and analyze what I thought made them winners... then build my own.

I liked the mix of Pilsner, Wheat, and Vienna I found in a BYO Magazine recipe.  I'd gotten complaints that one of my Saison recipes lacked malt complexity.  Another recipe referenced using cane sugar and a high mash temp to balance out the dryness from the cane sugar with some unfermentable sugars.  I wanted to mix Saaz, Citra, and Mandarina, but didn't have any Saaz on hand.  Last, but not least, I wanted a hint of spice and fruit.  That's where the coriander and grains of paradise come in.  Hopefully this will all play well with the Saison yeast.

Ingredients

4 pounds Briess Pilsner Malt
8 ounces Whiteswaen White Wheat Malt
8 ounces Briess Vienna Malt
8 ounces Cane Sugar
2.5 gallons of mash water, filtered
2.5 gallons of sparge water, filtered (if I brewed this again, I'd use 2 gallons)
1.5 ml of 88% lactic acid solution (mash)
0.15 ounces of Mandarina Bavaria hops pellets @ 9.2% AA (FWH 90 min.)
0.25 ounces of Citra hops pellets @ 13.0% AA (20 min.)
0.30 ounces of Mandarina Bavaria hope pellets @ 9.2% AA (5 min.)
2 grams crushed coriander seed
1 gram crushed seeds of paradise
1 package of "yet to be determined" Saison yeast

Brewfather estimates the beer will have the following characteristics:
  • Batch Volume:  3.0 gallons estimated (3.5 actual, 0.5 dumped)
  • Original Gravity:  1.057 SG estimated (1.049 SG actual)
  • Pre-boil Gravity:  1.038 SG estimated (1.043 SG actual)
  • Final Gravity:  1.004 SG estimated
  • IBUs: 26
  • SRM: 2.4
  • ABV: 6.0% estimated
Mash schedule:
  • Mash in at 113F (Ferulic Acid Rest) for 10 minutes
  • Mash at 120F for 25 minutes (Beta Glucan and Protein Rest)
  • Mash at 156F for 60 minutes
  • Mash out at 168F for 10 minutes
  • Sparge at 130F for as long as it takes...
Some of you might be wondering why I had a Ferulic Acid rest in here. That's because Belgian yeasts and similar types like Saison and Hefeweizen, can express their character better with some ferulic acid to work with.  Adding that rest, I should be able to get more Saison yeast character out of the batch.

Boil schedule:
  • 90 minutes:  0.15 ounces Mandarina Bavaria first wort hops (FWH)
  • 20 minutes:  0.25 ounces Citra hops
  • 5 minutes:  0.30 ounces Mandarina Bavaria, coriander, seeds of paradise
Fermentation plan:
  • Ferment at the yeast's midpoint range until complete
Notes and Observations

02/23/2020:  This brewing session was a lesson in preparing, tracking your inventory, and paying attention while you brew.  I got distracted when measuring my grain and dropped a half pound in the container instead of the 5 ounces I'd planned.  I had to correct that by increasing the overall grist to maintain the percentages of the malts, and increase the volume to compensate.  Then I found out that I didn't have Saaz hops like I thought I did (and had in my inventory), and compensated with Mandarina Bavaria.  And then almost forgot to include the sugar.  As if that wasn't enough, I ended up dropping the hops in at first wort before remembering that I was planning a 90-minute boil and was going to include the hops at 60 minutes.  So I think I goofed up in just about every way I could have, before the boil even started...

Post-boil volume was 3.5 gallons of chilled wort, about a half-gallon more than I wanted.  This led to an original gravity of 1.049 SG instead of the 1.057 SG that I'd intended.  Still, that figure (per Brewfather) represents a mash efficiency of 97% and a brew house efficiency of 81%.

The next question for me is whether the yeast I plan to use will come to life in the starter or not.  If not, I have a package of Danstar Belle Saison I can use, and I may receive another in a brewing supply shipment later this week.

02/25/2020:  The yeast seems to have taken off.  Gravity is down to 1.046 SG.

02/26/2020:  Gravity 1.042 SG, 62F.

Sunday, February 23, 2020

Acerglyn 2.0

In October 2019, I made an Acerglyn that I was fairly happy with.  I decided to revisit that recipe, but to dial up the percentage of maple syrup in the must and increase the volume so that I could split off a gallon or two and add toasted oak to that.

Last time around, I used 7 ounces of syrup and 2 pounds of honey.  That's around 18% of the fermentables as maple syrup.  This time around, I'm aiming for a higher percentage of maple syrup.

Ingredients

5 pounds of Wildflower Honey
2 pounds Grade A Dark Maple Syrup (formerly Grade B)
1 tsp. Fermaid K
1 tsp. DAP
1 packet  Lalvin K1V 1116 yeast
Filtered tap water to the 3 gallon mark in the fermenter

Characteristics of the brew:
  • Batch Volume: 3.0 gallons
  • Original Gravity: 1.085 SG estimated, 1.095 SG actual
  • Final Gravity: 0.992 SG estimated
  • ABV: 11.4% estimated
  • Fermenter Used:  Lister
  • Bottling Wand Used:  n/a
  • Carbonation Method Used:  n/a
As with my previous meads, the brewing process is pretty straightforward and simple:
  • Sanitize the fermenter and other tools to be used
  • Soak the honey in hot tap water for a while to loosen it up
  • Filter the tap water through a Brita filter
  • Pour about a gallon of water into the fermenter
  • Add the honey, maple syrup, and yeast nutrients
  • Attach the sanitized degassing wand to a cordless drill.
  • Insert the wand into the fermenter and run it until the honey is mixed in well and the must is aerated, adding water as needed to get the honey dissolved and reach the planned 3 gallon volume
  • Pitch the dry yeast directly atop the must and seal the fermenter
Because this is a comparatively low-gravity mead (clocking in around 12%, compared to a few I've done in the past), the fermentation plan is equally simple:
  • Ferment the must until final gravity is reached, or nearly reached.  (I hit 0.994 SG the last time around but the mix of fermentables was different, so this batch may ferment lower.)
  • Pull 1 gallon of the mead off the yeast and into another sanitized fermenter.  Add a blend of medium toast oak chips to it, in a stainless steel container.  Allow this to sit until the desired oak character is present.
  • Bottle the rest of the mead, half with four carbonation tablets, half without.  Optionally add 1/4 to 1/2 tsp. of wine tannins.
  • When the oaked mead reaches the desired character, bottle it.  Do a few bottles with four carbonation tablets, the rest without.
My goal here is to end up with four variants of the recipe:
  • Non-oaked and still Acerglyn
  • Non-oaked and carbonated Acerglyn
  • Oaked and still Acerglyn
  • Oaked and carbonated Acerglyn
The reason I'm doing all these variants goes back to the original batch. I found it tasty and easy to drink as a still, non-oaked beverage, but also a tad boring.  I thought that oaking it might make it more interesting.  So might some carbonation.  This way I'll be able to try all four variants and decide what I like best for a future, larger batch.

Notes and Observations

02/23/2020:  I had originally planned to use less maple syrup in this batch, but got distracted while pouring it and ended up adding 2 pounds (32 ounces) instead of the 25 ounces I'd intended to use.  This bumped the OG up a little, but within a few points of what I wanted from the batch so I decided not to dilute it further.  Tap water this time of year in Ohio is pretty cold (57F), so I am a little concerned that it may not be warm enough for the yeast to get started for a while.

02/25/2020:  Gravity registered as low as 1.092 SG before bounding back up.  It is currently reading 1.095.

02/26/2020:  Gravity 1.081 SG, 64F.

Sunday, February 9, 2020

Passion Fruit Melomel 1.0

Yesterday, I brewed a Passion Fruit Milkshake IPA.  In the process of doing so, I opened a container of natural passion fruit flavoring I had purchased.  Since I didn't want that to go to waste, and I had been wanting to make a Passion Fruit flavored mead anyway, I decided to put that together while I was in the brewing area working on something else.

Ingredients

5 pounds of Wildflower Honey
2.9 ounces of Amoretti Natural Passion Fruit Flavoring
0.5 tsp. Fermaid K
0.5 tsp. DAP
1 packet Lalvin K1V 1116 dry yeast
Spring water to the 2-gallon level in the fermenter

This should yield a melomel with the following qualities:
  • Batch Size: 2.0 gallons (1.87 gallons, approximately, in fermenter)
  • Original Gravity: 1.075 SG estimated (1.108 SG actual)
  • Final Gravity: 0.984 SG estimated
  • ABV: 12.3%
  • Fermenter:  Yoda
  • Bottling Wand: n/a
  • Carbonation Method: n/a
Brewing method is pretty straightforward:
  • Sanitize fermentation bucket, degassing wand, and airlock
  • Soak honey container in hot tap water for a few minutes to loosen up the honey
  • Pour a little spring water in the fermentation bucket
  • Pour in the honey
  • Add yeast nutrient
  • Add passion fruit flavoring
  • Fill with water to the 2 gallon mark
  • Attach degassing wand to battery powered drill
  • Use the degassing wand to oxygenate the wort and mix all the ingredients
  • Gently sprinkle the yeast across the surface of the must
  • Snap on the lid and insert airlock
Fermentation plan is to leave the mead out at ambient temperature (62-65F) until the completion of fermentation.

After fermentation, my plan is to let the mead condition on its yeast cake for at least 2-3 weeks before bottling.  Depending on the clarity, I may pull it off the yeast and let it go a few months.

To bottle, I plan to do a few bottles with no carbonation (still), and the rest with three Brewer's Best carbonation tablets per bottle (medium carbonation).  I'll allow it condition in the bottle for at least two more weeks 

Post-Brew Notes and Observations

02/09/2020:  Putting the must together was extremely easy.  It became clear that I couldn't really fill the fermenter to the two-gallon mark without risking a problem with blowing out the airlock or the lid, so I stopped between the 1.75 gallon and 2.0 gallon marks.  I can always dilute it later if I like.  The initial gravity read 1.108 SG with a temperature of 66F.

02/10/2020:  Gravity is down to 1.107 SG and the temperature has dropped to 65F.  I don't see significant signs of activity in the airlock at this point, but didn't really expect to for another 12 hours or so.

02/11/2020:  Gravity is down to 1.106 SG and the temperature is up to 66F.  There were clear signs of active yeast when I peeked into the bucket last night, so I'm looking forward to seeing the gravity start dropping off more rapidly, soon.

02/12/2020:  Gravity is all over the place for the past several hours, registering as high as 1.112 SG and as low as 1.103 SG.  Temperature has been between 64-66F.  Around 10pm, I degassed the melomel, added more yeast nutrient, and pitched a second package of the same yeast.  I'm hoping this will get fermentation going strong again and allow it to finish out.

02/13/2010:  Gravity is reading 1.090 SG today, which represents 13% attenuation, and 2.7% ABV.  I'll plan to go down tonight or tomorrow night and degas it again, and possibly hit it with more nutrients to keep fermentation going.

02/14/2020:  Gravity 1.070 SG and 65F.

02/16/2020:  Gravity is down to 1.051.  Earlier in the day I degassed the must, oxygenated it a little at the same time, and added yeast nutrients to help keep fermentation going.

02/18/2020:  Gravity 1.028 SG and 64F.  11.8% ABV.

02/20/2020:  Gravity 1.009 SG and 64F.  14.4% ABV.

02/22/2020:  Gravity 1.008 SG and 64F, 15.1% ABV.  Fermentation is definitely slowing but does not appear to have stopped yet.

02/25/2020:  Gravity 0.998 SG, 63F, and 15.8% ABV.

02/26/2020:  Gravity 0.997 SG, 62F, and 15.9% ABV.

Saturday, February 8, 2020

Passion Fruit Milkshake IPA 1.0

The finished beer
Long-time readers and friends will be familiar with the fact that I am not that fond of the IPA style in general.  I get far more enjoyment from the flavors inherent in specialty malts and yeast, as we find in Belgian style beers.  That said, I do occasionally drink one of the more flavorful IPAs like Rhinegeist Truth.  A number of friends and family members enjoy so-called Milkshake IPAs, and I've enjoyed some (and less, others) over the last few years.  Having spent a couple of years in Brazil and getting to experience the flavor of passion fruit first hand, I thought that might make a particularly interesting milkshake IPA.

I reviewed a few successful and popular Milkshake IPA recipes and settled on a grain bill that mixed barley, oats, and wheat to achieve the signature hazy thickness.  A high mash temperature should ensure some sweetness, with a bit of lactose to back that up.  Lots of passion fruit puree and the use of Southern Passion hops should bring the fruit flavors and aromas I'm looking for.

Ingredients

4 pounds Briess 2-row brewers malt
1 pound Whiteswaen Classic Wheat Malt
1 pound malted oats
1 pound Quaker flaked oats
a couple of handfuls of rice hulls
3 ml of 88% lactic acid
1 gram of Gypsum
3.6 gallons of mash water (Dublin Ohio tap water)
3 pounds of Vintner's Harvest passion fruit puree (fermenter addition)
2 ounces of Amoretti artisan natural passion fruit flavoring (fermenter)
1/2 tsp. yeast nutrient (15 min)
1.5 ounces Southern Passion hops pellets @ 12%AA (5 min)
8 ounces Lactose (during whirlpool)
4 ounces Lactose (at bottling)
1/2 tsp. Pure Vanilla Extract (late in primary fermentation
1/2 tsp. Pure Vanilla Extract (at bottling)
2 ounces Southern Passion hops pellets @ 12% AA (160F whirlpool 30 min.)
2 ounces Southern Passion hops pellets @ 12% AA (160F whirlpool 15 min.)
2.5 ounces Southern Passion hops pellets @ 12% AA (dry hop 7 days)
1 package LalBrew (Lallemand) American East Coast Ale yeast (dry)

Brewfather indicates the recipe has the following qualities:
  • Batch Size: 2.5 gallons
  • Original Gravity: 1.093 SG estimated, 1.094 SG actual before the addition of pain fruit puree, then 1.078 SG
  • Pre-boil Gravity: 1.064 SG estimated
  • Pre-boil Volume:  3.4 gallons estimated
  • Final Gravity: 1.031 SG estimated
  • IBUs: 51
  • SRM: 4.3
  • Brewing System:  Grainfather (modified)
  • Fermenter: n/a
  • Bottling Wand: Stainless 1
  • Carbonation method:  3 small tablets per 12-ounce bottle
Mash schedule:
  • Mash in and mash step 1:  155F for 60 minutes
  • Mash out 168F for 10 minutes
  • No-sparge method planned
Given the thin mash used, I decided I would not sparge this batch unless the pre-boil volume was below the intended amount.  I chose to go for a thin mash both to maximize mash efficiency and to reduce the chances of a stuck mash from all the wheat and oat in the recipe.

Boil schedule:
  • 60 minutes:  No additions
  • 15 minutes:  Yeast nutrient
  • 5 minutes:  1.5 ounces Southern Passion
  • 0 minutes:  Cool the wort to 160F and hold it there for whirlpool
Whirlpool schedule:
  • 30 minutes: Add 2 ounces Southern Passion
  • 15 minutes: Add 2 ounces Southern Passion
  • 0 minutes:  Chill to yeast pitching temperature while pumping into fermenter
Yeast properties:
  • This yeast is said to ferment in 7 days, and perhaps a bit slower than most ale strains.
  • The lag phase may be 24-36 hours
  • Medium to high attenuator
  • Medium flocculation
  • Neutral to slightly fruity and estery flavor and aroma
  • The optimal temperature range for fermentation is 59F to 72F
  • Lallemand rates it as having a moderate tropical fruit aroma/flavor, and lighter red apple, with possible hints of acid, alcoholic, and green apple to it.
Fermentation plan:
  • London Ale III likes to be between 59F and 72F.  Ambient basement temps at this time around around the lower end of that range, so I'm planning to keep the fermenter in the cooler part of the basement and let ambient air keep it cool.
  • Because I should be overpitching here, using a full package to 2.5 gallons, I'm not going to bother with rehydrating the yeast or creating a starter.  But I am adding a solid dose of yeast nutrient to help keep the yeast healthy, and I'll be splashing the wort well as it falls into the fermenter to ensure aeration.
  • Once the gravity is down near the last 10 points or so, I'll add the dry hops and then wait for the gravity to stabilize for at least 4 days (and up to 7) before bottling.
Post-Brew Notes and Observations

02/08/2020:  I crushed the barley, oat malt, and wheat.  I then added the flaked oats and rice hulls to the container and stirred everything well to get it all mixed together as evenly as I could.  I added a few scoops at a time and stirred after each addition, then gave it all a good stir at the end to break up any dough balls.   The 2.05 qt/lb mash thickness and rice hulls, I hoped, would prevent any stuck mash or (if I eventually do sparge) stuck sparge.

About 20 minutes in, mash pH read 4.95.  I added a quarter-teaspoon of calcium carbonate to bring it up a bit and waited 5 minutes to check the pH again.  Clearly I didn't need to add the Lactic Acid that Brewfather recommended. I should have at least waited to add it.  Lesson learned.  

Another 5 minutes after the calcium carbonate addition, the pH was still around 4.9.  I added another quarter teaspoon the try to bring it back up.  It continued to stay around 4.9.  After reviewing a Brulosophy experiment where a wort was intentionally mashed at a low pH and had no negative effect, I decided not to add any more calcium carbonate for fear of messing with the flavor.  Apparently there are some professional breweries that intentionally mash as low as 4.5 to get good results.

The Amoretti natural passion fruit flavoring recommends dosage of 7-14 ounces by weight per 10 gallons in drinks, which would work out to roughly 1.75 ounces for 2.5 gallons.  I decided to round that up to 2 ounces to ensure there's a clear passion fruit flavor in addition to that provided by the passion fruit puree.  

Gravity during the whirlpool hop stand registered 21.2 Brix, which for my refractometer is 1.094 SG.

When I pumped the chilled wort onto the passion fruit puree, then stirred it all in well, the gravity of the wort dropped to 1.078 SG.  That's lower than I wanted but acceptable.

02/09/2020:  There is clear activity from the airlock and the gravity has dropped down to 1.076 SG.  The temperature is reading 65F.

02/10/2020:  Gravity is down to 1.058 SG and temperature is up to 66F.

02/11/2020:  Gravity is down to 1.036 SG and temperature is up to 69F.

02/12/2020:  Gravity is 1.033 SG and temperature is down to 62F.  We're just two points from the expected final gravity.  At 9:30pm, the airlock was still bubbling nicely.  I opened the fermenter and dropped three tea strainers containing a total of 2.5 ounces of Southern Passion hops pellets.  I'm expecting this dry hop addition to kick off some hop creep, which will break down some of the residual sugars and cause additional fermentation, so I won't plan to bottle this until I've seen no gravity change for at least 3-4 days straight.  The last thing I want to see is this turning into a batch of bottle bombs and wasting the effort (and expense) that went into brewing it.  In fact, the gravity has already dropped from 1.033 SG when I wrote some of the earlier sentences to 1.032 SG.  The beer right now looks like a jug of passion fruit juice with about a half-inch head of yeast on top.  I'm hoping it turns out well.

02/13/2020:  Gravity has hit the original FG estimate of 1.031 SG today.  With the dry hops having only been added last night, I'm expecting the "hop creep" to drop it a little lower, but we'll see.  Regardless, I'll want to get the beer away from the dry hops no later than February 19 to avoid any grassy notes.

02/14/2020:  Gravity 1.030 SG and 62F.

02/16/2020:  Transferred the beer off the yeast cake and sediment, then tasted it.  The lactose was not detectable, as the beer primarily tasted dry and bitter with a distinct passion fruit note.  I ended up adding two ounces of lactose dissolved in distilled water and another half-teaspoon of vanilla.  This helped but wasn't enough, so I added another two ounces of lactose.  At this point, I debated what to do.  It was better now, but not as sweet as many milkshake IPAs I've had. I could add more lactose, but I thought that would risk another problem I've seen in these beers, which is that the over-use of lactose creates a weird, artificial flavor to the beer.  Since passion fruit is a tart fruit anyway, it seemed like a good idea to stop here and let the fruit's true nature come through.  I bottled it in 12-ounce bottles and loaded each with three small carbonation tablets each (low carbonation).  I'd have gone higher, but my concern was that the dry hops might cause some hop creep that would further increase carbonation.

Monday, January 20, 2020

Strange Roots Hive Alive Inspired Honey Ale 1.0

A couple of months ago, the folks at Tavour offered me a chance to purchase a beer from Strange Roots Experimental Ales in Pittsburgh, PA.  The beer, called Hive Alive, clocked in at 17.3% ABV.  The Tavour folks described it as:
Each velvety mouthful sends your palate fluttering into honey heaven.  That's bee-cause Strange Roots crafted their mead-like Still Ale with copious amounts of real orange blossom honey and malted barley!  And that's drizzled on top of an already-smooth Pilsner malt base, resinous hops, and Pennsylvania wild yeast for a touch of funk... [snip] this brew drips with earth tones, florals, and sugar cookie-like sweetness. All the while, gentle stings of apricot and orange citrus keep the experience from becoming too cloying.

This is the bottle I opened almost two weeks ago. It was really tasty, and inspired me to try my own version of it.

I'm not trying to replicate theirs exactly, which is probably not possible without their wild yeast and knowledge of the hop variety they presumably used.  In fact, I'm planning to leave the hops out of this one.  I'm going to mash it very low so the wort is mostly fermentable (meaning little residual sugar) and the hops may not be missed.  (I could not detect the "resinous hops" mentioned in the Tavour post, or any hops at all.) I'm going to add some bitter orange peel, to dial up the orange note in the flavor.  Although I'm aiming for an ABV close to what they had, we'll see if that's feasible.

Ingredients

9.5 pounds Viking Pale Ale Malt
2.0 pounds Orange Blossom Honey
1 ounce Bitter Orange Peel (15 min.)
1/4 tablet Whirlfloc (15 min.)
0.5 tsp. Yeast Nutrient (15 min.)
1 package Red Star Premier Cuvee champagne yeast
4.75 gallons of mash water
No sparge water

According to Brewfather, the brew should have the following qualities:
  • Batch Size: 2.5 gallons (2.6 actual)
  • BJCP Style:  M4A. Braggot 
  • Original Gravity: 1.137 estimated (1.096 SG actual)
  • Pre-Boil Gravity: 1.091 at 3.6 gallons estimated (1.044 SG actual at 4.1 gallons)
  • IBUs: 0
  • ABV: 17.8% estimated based on 1.137 SG, 10.8% revised estimate based on 1.096 SG
  • SRM: 7.8
Mash schedule:
  • 20 minutes at 120F for Beta Glucan and Protein breakdown
  • 40 minutes at 140F for high fermentability
  • 20 minutes ramping up 5 degrees at a time from 140F to 155F
  • 10 minutes mash out at 168F
Mash pH was measured 2-3 times during the 140F step and stayed at 5.35.


Boil schedule:

  • Although I'd planned a one-hour boil, pre-boil volume registered about 4.1 gallons (and gravity only around 1.044 SG), so I added 45 minutes to the boil to bring the volume down closer to my target of 2.5 gallons in the fermenter and raise the gravity.
  • 105 minutes:  No additions
  • 15 minutes:  Add Whirlfloc, Yeast Nutrient, and Bitter Orange Peel
  • 0 minutes: Chill to yeast-safe temperature
Fermentation schedule:
  • Aerate well with pure O2 prior to pitching
  • Pitch yeast dry atop the wort.  After 30-45 minutes, swirl the sealed fermenter to make sure the yeast goes into suspension.
  • Ferment at ambient basement temperatures (which are well within Premier Cuvee's range) until fermentation is complete.
  • After 2-3 days, if fermentation seems to be slowing, add 0.25 tsp. yeast nutrient and oxygenate again to keep fermentation going.
  • Bottle without any carbonation, as the Strange Roots product was.

Post-Brew Notes and Observations

01/20/2020:  I wanted a 2-quarts-per-gallon mash thickness for this batch, which ended up resulting in so much mash water that a sparge wasn't feasible.  In fact, although I had calculated a pre-boil volume of 3.6 gallons, the actual volume came out closer to 4.1 gallons.  This necessitated increasing the boil time to both eliminate the excess water and concentrate the wort a bit.

Original gravity, even after boiling down the volume, only reached 1.096 SG. That's a far cry below the 1.137 SG originally estimated.  I decided to let it go, to see how this turns out flavor-wise.  If it's good, I'll try re-brewing later with an eye toward hitting the 17.8% ABV like Strange Roots did.  Brewhouse Efficiency on this batch hit a mere 58.51%.  I don't know why it was so low, unless maybe the Viking Pale Ale Malt isn't converting well.  It stayed in a good pH range, it was a thin mash, and it had well over an hour to convert, so there's no reason the gravity should have been so low.

01/21/2020 7:03pm:  There is a thick krausen now where before there was none.  Gravity has dropped from 1.096 down to 1.091 SG and the temperature has dropped from a high of 66F at yeast pitch to a low of 63F an hour ago before rising up to its current 64F level.

01/24/2020:  Gravity has dropped to 1.059 SG and held there for longer than I would expect.  The yeast has pretty much vanished to the bottom of the fermenter. A YouTube video I read recently on sake brewing mentioned that wine yeasts can basically compact themselves in the bottom of a fermenter, trapping in CO2 and to some degree going dormant.  Rousing the yeast and releasing the CO2 can help them continue fermenting.  I swirled the fermenter very hard so that the entire yeast cake was loosened and broken up in the fermenter, which did release a lot of CO2.  But since I couldn't see any evidence of fermentation, I decided to pitch some Crossmyloof Barleywine yeast to see if it would jumpstart a new round of fermentation.

01/26/2020:  Gravity is down to 1.057 SG.  It's been as low as 1.055.  I've added yeast nutrient and amylase, as well as running my degasser through it to get the CO2 released, the yeast back into suspension, and add some oxygen to try to finish up the fermentation.  A taste of it before doing all that yielded a little-too-sweet flavor, but pleasant.  I'd like to get it down closer to 1.021 before calling it quits.

01/27/2020:  Gravity seems to be holding at 1.056-1.057, which suggests a stuck fermentation. I've tried degassing, adding yeast nutrient, and even adding a different yeast strain, to no avail.  That brings me to the next likely candidate here in the Ohio winter, temperature.  Wort temp has been reading 62-63F for days now, so I've swirled the fermenter again to get the yeast back into suspension and placed the fermenter in a temperature control setup that will aim to raise it to 70F over the next few hours to see if this restarts fermentation.  If we hit my target (70F) by morning and there is still no fermentation activity, I'll increase to 75F and swirl the fermenter again to hopefully get it to finish out.

01/28/2020:  The temp held at 69-70F since midnight.  No change in gravity since then.  I'm going to raise it later tonight to around 75F and swirl it again to see if that wakes up the yeast.

01/29/2020:  At 11pm last night, I swirled the fermenter hard and raised the temp to 75F.  Tonight, the gravity is down to 1.055 SG.  Considering that the fermenter contains both champagne and high-gravity beer yeast, I would not expect the gravity to remain so high.  There is a potential for at least 10% ABV, but we're currently sitting at 6%.

02/08/2020:  After increasing the temperature to 85F, the gravity has only dropped to 1.053 SG and held there.  I'm debating what to do about this.  At this gravity, it's way too sweet to drink.  Bottling it introduces the risk of the yeast reactivating later and exploding the bottles.

02/09/2020:  Since the brew has been sitting on the yeast now for about three weeks, I decided that additional action is needed.  I transferred the brew off the yeast cake into a cleaned and sanitized fermenter.  This should prevent any autolysis.  Unfortunately, the gravity is still reading 1.053 SG.  I confirmed this with both a Tilt Hydrometer and a standard glass hydrometer (which both read the same figure).  Tasting the brew from the hydrometer tube proved to be very cloying, so I know that additional fermentation is needed.  I've had pretty good results with Coopers Ale Yeast in the past, being a fairly aggressive fermenter, so I decided to give it a shot.  I created a one liter starter with a can of Propper Starter with about 8 ounces of the existing brew included in it.  This was placed on a stir plate to ensure good oxygenation.  I'm hopeful that by tomorrow or Tuesday I'll have a nice healthy colony of Coopers Ale Yeast that I can pitch into the fermenter.  With any luck, that yeast (perhaps aided by glucoamylase if needed) will get the gravity down into a less-cloying range.

02/10/2020:  I added a few drops of glucoamylase to the fermenter and splashed in a little of the Coopers Ale Yeast starter while I waited on the yeast to settle out of it.  Later, once the yeast has settled out of suspension my plan will be to pitch the lot of it in the fermenter to see if we can get it to final gravity.  If that doesn't work, I may end up having to dump it.

Late in the day, I dumped the liquid off the 1L starter and swirled the yeast layer into suspension. This and a drop of glucoamylase were added to the fermenter.  Gravity has since started dropping, currently reading 1.048 SG, but this could be a result of the added liquid with the yeast.  For that reason, I am cautiously optimistic at this point that fermentation has restarted but uncertain that it has.

02/12/2020:  The enzyme and fresh yeast seem to have done the trick.  Gravity is down to 1.043 and still seems to be dropping. Before the yeast and enzyme addition, the top of the beer in the fermenter was clean.  All of the yeast had dropped out of suspension.  Tonight there is a half-inch layer of krausen atop it, suggesting that fermentation is going again.  Because we are now looking at a mix of three yeast strains potentially in the beer (the original wine yeast, barleywine yeast, and now Coopers Ale Yeast), I think it would be difficult to reproduce this one.

02/13/2020:  The gravity has been slowly working its way down.  It's 1.040 SG now, which Brewfather tells me is 8.2% ABV and 56% attenuation, so we have a way to go yet before we hit bottom.

02/14/2020:  1.036 SG and 62F today.

02/16/2020:  1.031 SG and 64F.

02/18/2020:  1.026 SG and 62F.

02/20/2020:  1.021 SG and 62F.

02/22/2020:  1.018 SG and 62F, 11.2% ABV.  Still showing signs of fermentation.

02/25/2020:  1.011 SG, 63F, and 12.1% ABV.

02/26/2020:  1.009 SG, 62F, and 12.4% ABV.

Friday, January 17, 2020

Mandarina Munich SMaSH 1.0

Last weekend, I brewed a SMaSH beer using only Viking Pale Ale Malt, Mandarina Bavaria hops pellets, and Safale US-05 yeast.  As part of my ongoing effort to learn what the various base malts contribute to the flavor of a beer, I'm making this one with Munich Malt.  The main challenge this time is that I'm using 5 pounds of malt instead of the 4 I used last time.  To get the gravity close to the last two batches, I'm bumping the volume up from 2.5 to 3 gallons.

Ingredients

5 pounds Avangard Munich Malt (Munich Avangard - Malz Premium 6L)
1.5 tsp. pH 5.2 Stabilizer
0.25 tsp. Brewtan B (20 min. boil)
1/4 Whirlfloc tablet
3 gallons of mash water
1.75 gallons of sparge water
1 packet Safale US-05 yeast

Brewfather estimates the beer will have the following qualities:
  • Batch size: 3 gallons (estimated and actual)
  • Original Gravity:  1.049 SG estimated (1.055 actual)
  • Pre-Boil Gravity:  1.042 SG estimated (1.039 actual, at 4.25 gallons)
  • Final Gravity:  1.011 SG estimated
  • SRM:  6.2
  • ABV:  4.9%
  • IBUs:  23
  • BU/GU Ratio:  0.47 estimated (0.42 actual)
  • Mash pH:  5.25 (read 2-3 times during the mash)
  • Bottling Wand:  Stainless 1
  • Fermenter:  Anvil stainless 1
  • Carbonation Method:  3 small tablets per 12-ounce bottle
  • Cap color:  Yellow
Mash Schedule:
  • Mash in at 120F
  • Mash at 120F for 15 minutes
  • Mash at 140F for 15 minutes
  • Mash at 156F for 30 minutes
  • Mash out at 168F for 10 minutes
  • Sparge with water at 170F while heating to a boil
Boil Schedule:
  • My pre-boil volume was 4.25 gallons vs. the 3.14 expected, so I boiled it down to that amount before starting my 60-minute countdown.
  • 60 Minutes: No additions
  • 20 Minutes:  Brewtan B
  • 15 Minutes:  Mandarina Bavaria 0.5 ounces plus Whirlfloc
  • 5 minutes:  Mandarina Bavaria 0.7 ounces
  • Chill to 66F
Fermentation Plan:
  • Ferment at ambient temps until finished
Post-Brew Notes and Observations

01/16/2020:  It's become clear to me lately that I need to rework my mash and sparge water calculations.  Before I began using the PicoBrew Zymatic and the Brewie+, my brews with The Grainfather were generally spot-on.  I was rarely more than a few gravity points off the estimated OG with BeerSmith and rarely had to boil longer or add water when I had the beer in the fermenter.  The last two brews have been wildly off.

The Viking Pale Ale SMaSH beer I did last weekend came up about a quart short in the fermenter, but hit my gravity target so I let that go.

This beer had a pre-boil volume of about 4.25 gallons, so I ended up boiling an extra 40 minutes or so to hit the planned pre-boil volume of 3.76 gallons.  Then, after the customary (additional) one-hour boil, I wound up about a half gallon short in the fermenter with a gravity many points higher than intended.  To dial that in a bit, I added distilled water to the fermenter up to the 3-gallon mark, which dropped gravity down to 1.055 SG (which was still six points higher than the 1.049 SG I'd estimated).

Apart from that, the brew went fine. Mash pH stayed in the 5.2-5.4 range throughout the 120F and 140F stages (I didn't measure after that).

Brew House Efficiency on this batch was a bit of a shocker, though. With The Grainfather in the past, I'd achieved a pretty consistent efficiency of 78-83%.  That would be lower on high-gravity beers with a large grain bill, but it was consistent enough that I adjusted my recipes for 80% efficiency and nearly always hit my targets.  The calculator built into Brewfather and the calculator at Brewer's Friend both say that this beer went well past that historic figure.  Brewfather reports my brewhouse efficiency for the batch at 89.12%.  Brewer's Friend calculated 89.19%.  If you think that's wrong, consider that 5 pounds of grain yielded 3 gallons of wort at a gravity of 1.055 SG.

The wort had a nice aroma to it, reminding me of sugar cookies or maybe snickerdoodles baking in the oven.  The color was a mahogany brown and the wort looked extremely clear in the kettle.

I pitched the entire packet of dry US-05 onto the wort after topping up with distilled water.  After I had finished cleaning everything, I swirled the fermenter to help get the yeast fully into suspension.  Basement temps this time of year are pretty low, so I decided not to bother with temperature control on this batch. US-05's optimal temperature range is 59-75F.  My basement's ambient temp ranges between 62F and 65F, which is toward the lower end of that range, so I can't see the beer going over 75F during fermentation.  If it gets a bit warm, I may wrap a wet towel around the fermenter (which is stainless so it should pull the heat out well).

01/17/2020 12:33pm:  There are signs of fermentation.  The gravity is down to 1.053 SG this morning, per the Tilt, and temperature is reading 64.9F.  The temp has remained consistent since yeast pitch around 9:30pm last night.

01/20/2020 1:25am:  The gravity has dropped to 1.029.  Temperature peaked at 68F and is currently down to 66F.  I may need to heat the fermenter up a bit to get the gravity down to something closer to the expected 1.011 SG final gravity.

01/21/2020 6:59pm:   Gravity is now 1.026 SG.  Temperature is 62F.

01/24/2020 4:55pm:  Gravity has been holding at 1.026 now since January 21.  It will be time to bottle this soon, though I am surprised the gravity is this high.  A taste of the beer showed it to be very grainy in flavor, quite bitter, and very dry.

01/26/2020:  The beer was bottled today in a mix of bottle sizes, with 3 small carbonation tablets per 12-ounce bottle, 4 per 16-ounce bottle, and 6 per 22-ounce bottle.

Sunday, January 12, 2020

Viking Pale Ale Malt SMaSH 1.1

Late in 2019, I tried to brew a SMaSH beer using Viking Pale Ale malt and a sous vide setup.  The beer ended with the appearance of having kettle soured or getting infected, so I dumped it without attempting to bottle it.

I recently made some modifications to my Grainfather's wort chiller and recirculating pipe connections in the hope that this would make those connections easier to use and more reliable.  Today was my first attempt to test those out.

The goal of this brew session was twofold. First, I wanted to test the modifications to The Grainfather using a simple recipe with ingredients I had on hand in quantity, so that if something went hideously wrong I would only be losing a few bucks' worth of ingredients.  Second, I wanted to see how Viking Pale Ale Malt tasted when brewed by itself.

Ingredients

4 pounds Viking Pale Ale Malt
0.5 tsp. pH 5.2 Stabilizer (mash)
1 capful Phosphoric Acid 10% solution (mash)
0.50 ounces Mandarina Bavaria hops pellets @ 9.6% AA (15 min.)
0.70 ounces Mandarina Bavaria hops pellets @ 9.6% AA (5 min.)
1/8 tsp. Brewtan B (mash)
1/4 tsp. Brewtan B (boil - 20 min.)
1/4 tablet Whirlfloc
1 packet Safale US-05 yeast

2.5 gallons mash water (tap, filtered through whole-house carbon and Brita filters)
  • Note: I recommend using 2.75 gallons next time

1.25 gallons sparge water (filtered the same as the mash water)
  • Note:  I ended up actually using 1.0 gallons, but probably should have used 1.25 since my fermenter volume came up a little low (around 2.3 gallons)
According to the Brewfather app, the beer should have the following qualities:
  • Original Gravity: 1.046 SG estimated (1.045 SG actual)
  • Pre-boil Gravity:  1.038 SG estimated (1.039 SG actual)
  • Final Gravity: 1.009 SG estimated
  • Batch Size: 2.5 gallons
  • SRM: 4.3
  • IBUs:  29
  • ABV: 4.9% estimated
  • Brewhouse Efficiency: 77.5%
  • Fermenter:  Spock
  • Bottling Wand: Stainless 2
  • Cap color: Blue
Mash Schedule:
  • 15 minutes mash in at 120F (Beta Glucan rest)
  • 15 minutes mash at 140F (Alpha Amylase rest)
  • 30 minutes mash at 156F (Beta Amylase rest)
  • 15 minutes mash out at 168F and sparge
Boil Schedule:
  • 60 minutes:  No additions
  • 20 minutes:  Brewtan B
  • 15 minutes:  Mandarina Bavaria (0.5 oz.) and Whirlfloc
  • 5 minutes: Mandarina Bavaria (0.7 oz.)
  • 0 minutes:  Chill to 62F and transfer to fermenter
Fermentation Plan:
  • Days 1-7:  Ferment at ambient temperatures (64-69F)
  • Continue until the gravity holds for four straight days, per Tilt Hydrometer
Post-Brew Notes and Observations


01/12/2020:  I can't say the brew went flawlessly, but it was actually pretty close to textbook.  The only minor hiccup was that I didn't have quite enough mash water, so I shifted a quart from the sparge container to the mash tun and all was well.

The modifications to The Grainfather's recirculation pipe allow for considerably more wort flow than before.  The change to the counterflow chiller's input dripped once from the cooling water side, but that's all.  There appeared to be maybe a few drips from the recirculation pipe, but those could have been a spill changing from recirculation to chiller.

Checking the mash water pH during the first 30 minutes or so proved useful.  The mash was running about 5.7 pH at the start.  I added a capful of 10% Phosphoric Acid, which dropped that down to around 5.25-5.35 pH.  A half-teaspoon of pH 5.2 Stabilizer seemed to keep it close to 5.2 for remainder of the mash.

The Ohio winter weather meant that our tap water temps are pretty low. Coming straight out of the counterflow chiller, my wort was reading 62F... plenty cold enough for Safale US-05.  I pitched the yeast without hydrating it while cleaning everything up, then shook the fermenter to ensure that it all got mixed in and hydrated.

Gravity readings pre-boil and in the fermenter were within a point of the Brewfather calculated amounts so I wasn't upset about that at all.

01/14/2020:  Gravity dropped to 1.040 SG around midnight on 1/13.  As I'm writing this, it's about 11pm on 1/14.  Gravity is reading 1.019 SG and the temperature control system has been holding the temperature at 65F.  I'm expecting to hit a final gravity of around 1.009 SG, so we've fermented off around two-thirds of the sugar between the OG and the estimated FG.

01/15/2020:  Gravity is down to 1.014 SG today, and the temp is continuing to hold at 65F.  That puts me within 5 points of the estimated final gravity.

01/20/2020:  Gravity is down to 1.013 SG today and has held there for the last 2-3 days. I think we may be at the final gravity figure.  I learned that when doing smaller batches, The Grainfather boils off more like 0.67 or 0.68 gallons per hour rather than the documented 0.4.  That explains why I ended up with a lower than expected volume on this recipe.

01/21/2020:  Gravity has dropped to 1.012 SG.  Temperature is 62F.

01/24/2020:  Gravity has held at 1.012-13 SG since January 21.  Temperature is holding at 62F.  It will probably be time to bottle this soon.

01/26/2020:  Gravity has held at 1.012 SG for several days, so today I bottled the beer in 12-ounce bottles with 3 small carbonation tablets per bottle.