Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > BIAB Question
Reply
 
Thread Tools
Old 09-21-2010, 06:01 PM   #1
jgoette
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Columbia, SC
Posts: 108
Default BIAB Question

Hey ya'll,

Just picked up a 7.5 gal turkey fryer I would like to use to get started w/ BIAB...

What I was wondering is what is the biggest batch I could do in a 7.5 pot. Could I squeeze 5 gal batches out of it?


jgoette is offline
 
Reply With Quote
Old 09-21-2010, 06:36 PM   #2
flipfloptan
Feedback Score: 1 reviews
Recipes 
 
Join Date: Sep 2010
Location: upstate of SC
Posts: 293
Liked 17 Times on 14 Posts
Likes Given: 5

Default

Disclaimer: I did my first 2 BIAB AG batches this weekend. With 2.5 gallon Batches. See Below For my math on why 2.5 gallon batches.

I calculated a .12 gallon/pd grain absorption 10 pd grain recipe=1.2 gallons
My boil of rate for a good boil is 1 gallon/ hr add another gallon gallon
(My pot has a lot of service area)

Final numbers 1.2+1+5=7.2 gallons. Since all the water goes into a BIAB method. It was too close for me to try.

I did two 2.5 gallon batches of an APA and switched the hops. I will still have 2 cases of beer but two different APA to learn hop taste. A Chinook APA and an Amirillo APA.

Good Luck


flipfloptan is offline
 
Reply With Quote
Old 09-21-2010, 07:19 PM   #3
jgoette
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Columbia, SC
Posts: 108
Default

Can't quite understand your entire post...

I see the 1.2 gallons for absorption, 1 gal/hr, but "add another gallon gallon" does not compute.

Does this mean the biggest batch I can do with a 7.5 gal pot is 2.5 gal?
jgoette is offline
 
Reply With Quote
Old 09-21-2010, 08:33 PM   #4
Apendecto
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2009
Location: Rockwood, MI
Posts: 458
Liked 9 Times on 6 Posts
Likes Given: 19

Default

It depends on the gravity. For my last BIAB 5 gallon batch, I started with about 8.5 gallons of water using about 14 lbs of grain.

You'll probably boil off a gallon in the hour and the grains (say 10 lbs) will soak up a gallon or so. That doesn't leave much space for boiling over. But I'm no expert.
Apendecto is offline
 
Reply With Quote
Old 09-21-2010, 08:42 PM   #5
bullinachinashop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2009
Location: NE Ohio
Posts: 1,046
Liked 30 Times on 27 Posts
Likes Given: 31

Default

Mark 6.5 gallon level on the side of your pot with a center punch.
Fill to that level with strike water at adjusted temp. Add grains and mash for 60 min. Pull bag and rinse with 180* water until you get to the 6.5 gal mark. proceed as normal.
Have a beer and pat yourself on the back. You just did AG.

Bull
bullinachinashop is offline
 
Reply With Quote
Old 09-21-2010, 09:05 PM   #6
jgoette
Feedback Score: 0 reviews
Recipes 
 
Join Date: Mar 2010
Location: Columbia, SC
Posts: 108
Default

Oh yea, I'd like to do the Aussie style BIAB, so no sparge of any sort... Sorry for not clarifying.
jgoette is offline
 
Reply With Quote
Old 09-21-2010, 10:16 PM   #7
wacko
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Posts: 216
Liked 4 Times on 3 Posts

Default

Quote:
Originally Posted by bullinachinashop View Post
Mark 6.5 gallon level on the side of your pot with a center punch.
Fill to that level with strike water at adjusted temp. Add grains and mash for 60 min. Pull bag and rinse with 180* water until you get to the 6.5 gal mark. proceed as normal.
Have a beer and pat yourself on the back. You just did AG.

Bull
You forgot the have a beer section of your instructions, but otherwise these are solid instructions
wacko is offline
 
Reply With Quote
Old 09-21-2010, 10:24 PM   #8
bullinachinashop
Feedback Score: 0 reviews
Recipes 
 
Join Date: Oct 2009
Location: NE Ohio
Posts: 1,046
Liked 30 Times on 27 Posts
Likes Given: 31

Default

Quote:
Originally Posted by bullinachinashop
Mark 6.5 gallon level on the side of your pot with a center punch.
Fill to that level with strike water at adjusted temp. Add grains and mash for 60 min. Pull bag and rinse with 180* water until you get to the 6.5 gal mark. proceed as normal.
Have a beer and pat yourself on the back. You just did AG.

Bull

You forgot the have a beer section of your instructions, but otherwise these are solid instructions

I never forget that!!!!:
bullinachinashop is offline
 
Reply With Quote
Old 09-21-2010, 10:34 PM   #9
flipfloptan
Feedback Score: 1 reviews
Recipes 
 
Join Date: Sep 2010
Location: upstate of SC
Posts: 293
Liked 17 Times on 14 Posts
Likes Given: 5

Default

Sorry for the confusion and redudancy of last post.

Total Boil Water Volume

5 gallons boil volume +1.2 gallons for grain absorption if 10lbs used + 1 gallon for boil off = 7.2 gallons total.

I did two separate batches due to closeness of a 7.5 gal kettle and wanting to experiment with different hops.

Bullinachinashop makes alot of sense with his method. Didn't think of that in the middle of battle.

In my process I did a "sparge". Some bloggers and some podcasters do a sparge on BIAB. Below is my process. I didn't take any readings for efficiency. I wanted to work on process and I didn't know how to calculate efficiency last weekend. I do now.

Process:

I mashed at 155-158 for 60 minutes.
Lifted grains to drain, then placed in an extra cooler.
When water reach 170-175 I tea bagged grains from cooler for 10 minutes in kettle and added any extra drained water from cooler.
After 10 min. Placed grain bag on a grilling rack above kettle to get any drippings.
Once wurt reached boil removed grain bag and proceeded as normal.

Hope this makes better sense. Next time I will take the time to do readings and figure out efficiency. I just want beer.

flipfloptan is offline
 
Reply With Quote
Old 09-21-2010, 11:32 PM   #10
wacko
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jul 2010
Posts: 216
Liked 4 Times on 3 Posts

Default

Quote:
Originally Posted by bullinachinashop View Post
Quote:
Originally Posted by bullinachinashop
Mark 6.5 gallon level on the side of your pot with a center punch.
Fill to that level with strike water at adjusted temp. Add grains and mash for 60 min. Pull bag and rinse with 180* water until you get to the 6.5 gal mark. proceed as normal.
Have a beer and pat yourself on the back. You just did AG.

Bull

You forgot the have a beer section of your instructions, but otherwise these are solid instructions

I never forget that!!!!:
I stand corrected lol
Having a beer and heading back to reading comp 101


wacko is offline
 
Reply With Quote
Reply


Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
BIAB question craigd All Grain & Partial Mash Brewing 21 01-23-2011 04:15 PM
BIAB question about steamer basket eulipion2 All Grain & Partial Mash Brewing 3 05-08-2010 12:25 PM
BIAB Bag Question f4an All Grain & Partial Mash Brewing 14 05-03-2010 01:29 PM
BiaB mash question ISLAGI All Grain & Partial Mash Brewing 20 06-02-2009 06:58 PM
BIAB Mill question Daddymem All Grain & Partial Mash Brewing 16 04-26-2009 02:08 AM


Forum Jump

Newest Threads

LATEST SPONSOR DEALS