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Old 02-25-2012, 07:54 PM   #1
May 2009
Lexington, NC
Posts: 54

I'm relatively new at all-grain brewing - so if this is a dumb question, apologies in advance.

I usually get my supplies from I was about to order a recipe, but then started wondering if brewhouse efficiency was assumed at 100-percent. If it was, then I figured I needed to buy more grain by default as no one actually achieves 100-percent efficiency with a batch sparge.

Steve at Northern Brewer informed me through instant chat that a 75-percent efficiency is assumed (he also mentioned that Rahr 2-row is a great neutral grain for adding to recipes that won't substantially affect flavor).

So, with all the conversation about brewers getting 80+ efficiency, I just thought it was worth asking, can you screw up a recipe with an assumed efficiency of 75-percent by having an overly efficient brewhouse?

I read in one of the threads someone was claiming to have 92-percent efficiency. If you assume only 75-percent, and end up with 92, it seems like you're original gravity would be significantly higher than intended... ?

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Old 02-25-2012, 08:11 PM   #2
enkamania's Avatar
Nov 2010
Seattle, WA
Posts: 668
Liked 73 Times on 57 Posts

A lot of recipes are based on 70 percent as well. If you hit 92 on one of your first batches, that would be rare. If you are too low, this link can help you out.
Brewing is the perfect combination of cooking, science and alcholism

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