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Old 11-17-2012, 01:42 AM   #1
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Default biab conversion

Has anyone converted a full 5 gallon after recipe to a biab on beersmith if so can u go over how to do it?

Thanks

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Old 11-17-2012, 02:24 AM   #2
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What is your question exactly? What is there to convert?

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Old 11-17-2012, 02:47 AM   #3
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Quote:
Originally Posted by oasisbliss
Has anyone converted a full 5 gallon after recipe to a biab on beersmith if so can u go over how to do it?

Thanks
If you already have an AG recipe then there isnt a conversion just a process change. Remember all of the water that beersmith says you need will be in the pot for a BIAB.

Edit: is beersmith set up correctly? You may have to visit the beersmith website to tweak a few settings.
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Old 11-17-2012, 05:13 AM   #4
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so is it as simple as taking the total water you would use with strike and sparge in AG add them together and that would be your total water to use in a biab process?

Also, what if I want to take a 5 gallon AG and convert it down to 2.75 gallon BIAB ?

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Old 11-17-2012, 07:04 AM   #5
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Quote:
Originally Posted by oasisbliss View Post
so is it as simple as taking the total water you would use with strike and sparge in AG add them together and that would be your total water to use in a biab process?
yes but keep in mind you'll lose .1 gallon per pound to absorption so you have to brew one and check your efficiency. biab effiency can be as low as 50% which isn't so bad. You just might have to use more grain.

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Also, what if I want to take a 5 gallon AG and convert it down to 2.75 gallon BIAB ?
2.75/5 = .55

Multiply all measurements by .55. Hopefully you're using grams.
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Old 11-17-2012, 07:18 AM   #6
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Zactly! Read through the BIAB sticky starting at post 122. It covers this topic.
You also have to calculate what your boil off and grain absorption in your water estimate. Mind you, the grain absorption won't be as large since you'll be able to squeeze the grain bag to get the absorption rate down. I figured the absorption rate to be @ .075 gal/lb after a good squeezing.

I'm doing a BIAB tomorrow. My water estimate is: 5 gallon (final volume) + .075qt/lb of grain (for absorption) + amount boiled off during the duration of the boil (usually @ 1 gallon/hr) + 1 gallon for sparge.

All your questions should be answered in the BIAB sticky. I knows its a pain to go through a thousand posts but it is worth it!

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Old 11-17-2012, 07:20 AM   #7
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Quote:
Originally Posted by elkshadow View Post
yes but keep in mind you'll lose .1 gallon per pound to absorption so you have to brew one and check your efficiency. biab effiency can be as low as 50% which isn't so bad. You just might have to use more grain.



2.75/5 = .55

Multiply all measurements by .55. Hopefully you're using grams.
I find your efficiency number to be drastically low. Most BIAB's are over 70% with some even getting over 85%
Read through the sticky and you'll find many folks getting into the high 70's and low 80's for efficiency.
http://www.homebrewtalk.com/f36/biab...g-pics-233289/
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Old 11-17-2012, 08:00 AM   #8
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Yea, forget the old wife's tales about not squeezing the grain bag to much. You should try to get every drop out of the grain.

And if you convert to 2.5 gallons just let BeerSmith do the work and you do the brewing.

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Old 11-17-2012, 03:18 PM   #9
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Quote:
Originally Posted by OldDirty

I find your efficiency number to be drastically low. Most BIAB's are over 70% with some even getting over 85%
Read through the sticky and you'll find many folks getting into the high 70's and low 80's for efficiency.
http://www.homebrewtalk.com/f36/biab...g-pics-233289/
Yeah you should get efficiencies in the mid 70's easily and when fine tuned in the 80's.
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Old 11-17-2012, 03:38 PM   #10
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Thanks to all

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