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Old 02-06-2014, 04:13 AM   #1
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Default I crush the smallest possible for biab. Ok for AG?

I am making a switch from 5.25 gallon biab batches (typically 12#'s grain/6 gallon water in a 10 gallon pot) to 10.5 gallon all grain top off water where needed and was wondering if I needed to adjust my crush any going to a traditional all grain method. I am just doing the simple Dennybrew/Don osborn sort of way with the cooler mash tun setup and a couple of run offs. I crush the finest possible on my crusher (I believe it is .25?) and was hoping to carry on the same approach. Will I still be mashing around 153 as well for my ipa's? 12# 2 row, 1 #60L, 1#munich is my typical selection. I will be upgrading to a 15 gallon aluminum pot. Thanks

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Old 02-06-2014, 04:45 AM   #2
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Also I am normally around 78% eff. with my biab. Can I expect better from traditional all grain?

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Old 02-06-2014, 07:30 AM   #3
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There are a lot of factors involved, but ya you can get better efficiency. You can also get worse.

Best for me is 93% when I did a pretty good crush (had issues with my mill and had to double crush it) now that it's fixed, I'm generally in the 80-85% range.

As for the crush, you don't want to go too fine because you could get stuck sparges. You want to crush enough to break the grain while keeping the husks in tact.

I also fly sparge for better efficency, but it's a longer process.

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Old 02-06-2014, 04:01 PM   #4
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Awesome thanks. I always thought the clean up would be so much easier on biab but that bag is a pain to clean and im tired of having sugar wort everywhere on my back deck from dripping and squeezing.

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Old 02-06-2014, 04:17 PM   #5
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Quote:
Originally Posted by jcorn View Post
Awesome thanks. I always thought the clean up would be so much easier on biab but that bag is a pain to clean and im tired of having sugar wort everywhere on my back deck from dripping and squeezing.

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Ya cleaning is a pain regardless.

I used a 10 gallon round cooler with false bottom. I'd put a bag over the top and dump. Then hose it off. I've had times where the bag came off and the grain went all over... So you'll still have cleaning issues in sure.

I now have a 20 gallon blichmann for a tun. I haven't used it yet because I'm waiting until I get my herms coil. I'm expecting it to be a PITA to clean.
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Old 02-06-2014, 07:01 PM   #6
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If you're using a barley crusher or any mill with small rollers I believe .038" is recommended so you don't stick.

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Old 02-06-2014, 08:57 PM   #7
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If you're using a barley crusher or any mill with small rollers I believe .038" is recommended so you don't stick.
Yep sure am.. thank you for the heads up!

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Old 02-06-2014, 11:16 PM   #8
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I do have to say that the process is definitely more involved than even sparge biab. It keeps your turkey fryer active for sure. I have to bring strike water up to temp and then bring 2 different pots of sparge water up to heat as well. Four times on and off for my propane seems like I may have to go fill it more often.

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