New answers tagged attenuation
It can be for a few reasons: 1. Underpitching (not enough yeast), 2. Insufficient wort aeration before pitching, 3. Cold shock, 4. Old yeast that you bought in a store -- well the last one is actually underpitching again. What to do: 1. Make a good 1.5-2 l starter, start it 2-4 days before the brew day, 2. Aerate wort well, not just swirl it in a fermenter ...
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