Help me maximize BIAB efficieny.

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Johnnyhamer

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I normally mash for 60 minutes with NO mashout and I sparge by pouring 170 degree water over my grains/bag after the 60 minute mash. Any suggestion or tips to help maximize efficiency are greatly appreciated.
 

unionrdr

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Well,if the grains I order are already crushed,I crush them again on brew day with my Barley Crusher mill set at the factory .039". My OG's are definitely higher as a result. I also started dunk sparging. It also seems to work more evenly than pouring the 170F water over the bag of grains in a SS colander on top of the BK/MT.
 

MileHighBrewer

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double crush grain, and dunk sparge in a separate pot, this method has taken me to the high 70's efficiency. the only reason I'm not doing that anymore is purely a size matter since I stepped up to 10-12 gallon batches.
 

unionrdr

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Yeah,that'd definitely be a little heavy when wet. I typically mash no more than 6lbs of grains for my pb/pm biab beers. Even that's heavy enough when wet. But the dunk sparge works so well efficiency-wise,I'll keep doing that for the time being.
 
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Johnnyhamer

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Thanks! Going to try dunk sparging instead. Now I'll just wait at the door with my nose to the glass in anticipation of my ingredients coming today.
 

DaNewf

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I get my grain double crushed at my LHBS. After the mash I dunk and stir my grain in a second smaller pot followed by some rinsing and squeezing until I hit my boil volume.

I honestly have no idea what my efficiency is but it's better than 70% because my OG comes in a little high on recipes where 70% is assumed.
 

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