10/26/2022 0 Comments Biab beersmithTo scale a recipe down linearly, just multiply the amount of each ingredient by your batch size, then divide by the batch size specified in the original recipe. "Most homebrew recipes are formulated for 5 gallons (19 L) of beer. For 3 gal, 3/5 of a more typical 5 gallon recipe should work. Scaling a recipe is mostly independent of your mashing method. Higher than 160 mash temp will result in formation of unfermentable sugars and therefore a higher finishing gravity and overly sweet beer. It is easy to end up adding too much heat during the mash when trying to keep the temp from dropping, and once that heat has been added, it is really hard to drop it. Also, be really careful about your mash temperature. I tried a partial mash RIS last weekend that I had to water down at boil because 12.25 lbs of grain was too ambitious for a 5 gallon stockpot and my post mash water volume was only 1.5 gallons. Always make sure your water to grain ratio is 1.5 quarts per lb of grain. If you're trying three gallon batches BIAB style as a way to shift into all grain instead of extract, a few cautions from my own experience. As a newer brewer who hasn't had a chance to get beersmith yet, I usually create the recipes using. Best way to do it is to find a five gallon recipe that you want to brew, and calculate the percentages of the grain bill and then convert those percentages to the appropriate weight for your three gallon brew.
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