BIAB grain absorption rate

[donovanmaxwell]

Is my likely grain absorption rate likely to differ from "traditional" all grain brewing due to the double crush? Both of the two "traditional" all grain batches I did, my rate was roughly 0.1

 

[mdabbles]

Close to what I consistently get - .08. I'm a "squeezer"

 

[agrazela]

What is that, gallons water per pound of grain? If so, I also come up with about 0.1

 

[PRE66_6TART]

Yeah I also lose about .08 to .1 gallons per pound of grain.

 

[donovanmaxwell]

Yes, gallons per pound. Thanks guys!

 

[PlinyTheMiddleAged]

I lose 0.07 gallons per pound - I squeeze the bag pretty hard. Not sure it's really worth the effort to get the grain absorption rate down as low as I have it. You sure have to work hard to get the last little bit of sugary goodness out the the grain.

 

[redshift76]

0.04 for me

 

[mneilson]

I use 0.06 in all my calculations, and I squeeze fairly hard

 

[FatsSchindee]

About the same - .08 for me. That's with a normal milling at the LHBS and minimal squeezing (I squeeze the "neck" or top of the bag together above the grain to tighten the bag as much as possible, but don't squeeze the grain directly)


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[donovanmaxwell]

Thanks for all the replies. I've done a couple 2.5gal batches now and it looks like I only absorbed about 0.8gal as well. Loving this BIAB! Nice to have the flexibility of AG, but in the kitchen when the weather sucks. I'll still do traditional for 5+ gallon batches, but these 2.5 gallon batches are what I experiment with. Wish I'd have started this sooner.

 

[schiersteinbrewing]

Wish I'd have started this sooner.

Right there with you, I went from extract to a 3 vessel system, to BIAB. Loving the BIAB, for me it's way better than the 3 vessels.

 

[RM-MN]

Thanks for all the replies. I've done a couple 2.5gal batches now and it looks like I only absorbed about 0.8gal as well. Loving this BIAB! Nice to have the flexibility of AG, but in the kitchen when the weather sucks. I'll still do traditional for 5+ gallon batches, but these 2.5 gallon batches are what I experiment with. Wish I'd have started this sooner.

Try to minimize the wasted time and you can probably do two 2 1/2 gallon batches in the time it would take to do a 5 gallon batch in the traditional method. You can have the same amount of one beer or 2 different beers.