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All Grain Brewing / Re: First two BIAB batches low efficency (55-60%). Top reasons for low?
« on: January 22, 2013, 07:35:03 AM »
I agree with dmtaylor and mtnrockhopper on this one. What are your volumes at each step in your process? The crush definitely is/can be the first thing you can correct easily if this concerns you. Not that I have to, but I double crush my grains. It's more about reaching consistent numbers than shooting for a specific number. If I felt all I could get was 60%, with the effort I wanted to give, and I got that every time using a specific method, then I'd be happy and wouldn't worry about chasing 70% or 95% unless my pocketbook or quality was affected.
The way you are calculating efficiency through BrewersFriend suggests you may not be accounting for your final volume, which can be different from what the recipe states. Your volume measurements may swing your efficiency around 5-10% if you aren't careful. Gravity is not the only factor in calculating efficiency.
The way you are calculating efficiency through BrewersFriend suggests you may not be accounting for your final volume, which can be different from what the recipe states. Your volume measurements may swing your efficiency around 5-10% if you aren't careful. Gravity is not the only factor in calculating efficiency.


