While all-grain brewing is generally less-expensive and often produces much better results than extract brewing, there are plenty of times where you simply want to produce a drinkable beer and don't want to put the time and effort into an all-grain batch. When this happens, you'll want to convert an all-grain recipe to extract. Similarly, there may be extract recipes that sound good, but you want to reduce the cost and improve on the quality. In those cases, you'll want to convert the extract back to an equivalent of whole grain. Grain to/from Malt Extract Conversion Conversion from extract to grain or vice-versa is the most difficult. That's not because it involves complex math, but because extract manufacturers don't share the recipe for their extract wort. That means you won't know for certain which grains were used or in what amounts. All you can really do in these cases is approximate. BYO Magazine suggests that you can use specialty g...