WingedWheel329
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- Apr 4, 2014
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brewfun said:WingedWheel329 said:So my question is, do I fix my mash tun deadspace
Yes.
Scott already gave that advice to solve the volume issue, though. I wanted to help you with the next step because the low gravity might not be solely related to excess volume.
Oversparging is certainly a contributing factor. It's just that a 30 point difference on just 3/4 of a gallon oversparge sounds like a lot to me. The fact that you increased the volume gap from your post boil target hints at multiple issues, too.
I threw that extra volume at a 1.060 beer and the gravity only dropped 7-9 points (pre/post boil). I had to get to a barleywine before the gravity drop reached 25 points with your excess volume.
The easiest explanation is that your brewhouse efficiency is set too high and your boil off is set too low.
I'll otherwise assume that you accurately measured any kettle to fermenter losses and entered that in the equipment profile. Outside of that, there could be more factors like grain crush, mash pH.
I see. Well, I'm sure you're right that it's an efficiency number issue. I just didn't want to adjust too many things at once. Then I'd never be able to know what fixed it. Sounds like I need to prepare for my next few batches to come in low then,