The primary disadvantage of using a single-step infusion mash compared to a decoction mash for high-gravity beers destined for distillation is reduced starch conversion and extract efficiency. A single-step infusion mash involves holding the mash at a single temperature range optimized for enzyme activity. High-gravity beers, which are beers with a high concentration of fermentable sugars, require a significant amount of starch conversion to produce a wort rich in sugars. A decoction....
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