Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > Modified BIAB: hitting 85%+ efficiency




Reply
 
LinkBack Thread Tools Display Modes
Old 02-26-2010, 03:22 AM   #1
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Hartford, CT
Posts: 481
Liked 3 Times on 3 Posts

Default Modified BIAB: hitting 85%+ efficiency

I've just started AG and after reading a bit decided to go BIAB for a little less equipment up front. I've been doing it a little bit modified though, since my 7.5 gallon kettle isn't quite large enough for a full 5.5 gallon BIAB batch.

So what I do is mash in the bag with 5.5 gallons (and the grain takes up the rest of the volume in the kettle.) After 60 mins I pull out the bag and dunk it in another bucket with 2.5 - gallons of water, then pour that water into the kettle as well.

My first 2 batches both produced over 85% efficiency. It would have been about 67% efficiency with the initial volume alone. The bag dunk got me another 18-20%. I am pretty happy with that, and it is really no trouble to do either.


jaginger is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 03:26 AM   #2
Feedback Score: 1 reviews
Recipes 
 
Join Date: Aug 2008
Location: Portland OR
Posts: 5,420
Liked 48 Times on 46 Posts
Likes Given: 29

Default

The dunk was your sparge. Good idea, great results.


samc is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 03:33 AM   #3
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Stafford, Virginia
Posts: 729
Liked 12 Times on 10 Posts

Default

that is EXACTLY what I've been doing. I, too, regularly get efficiencies in the 80s. Just curious though, what is your water to grain ratio in the initial mash dunk?
alcibiades is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 03:42 AM   #4
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2009
Location: Hartford, CT
Posts: 481
Liked 3 Times on 3 Posts

Default

My 2 grain bills have been 12 and 13 lbs, and I went with 5.5 gallons just b/c that's about all i can fit in the kettle. So 22 qts/12 lbs is almost 2 qts/lb.

My OGs are getting too high though (i expected more like 70-75%), so I can drop down to more like 10-11 lbs of grain and then I'll be over 2 qts/lb.
jaginger is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 03:58 AM   #5
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2010
Location: Austin, TX
Posts: 18
Default

Man, I can't wait to start AG brewing. I know that I want to start with BIAB since it is the easiest equipment upgrade from extract, and I keep reading great posts like this making me think it is a good idea. I just hope I don't forget all this information...

Is there any way to subscribe to threads? I see people talking about doing it, but I can't seem to find the button...
Gardenhead is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 04:57 AM   #6
Feedback Score: 0 reviews
Recipes 
 
Join Date: Jun 2009
Location: Stafford, Virginia
Posts: 729
Liked 12 Times on 10 Posts

Default

Quote:
Originally Posted by jaginger View Post
My 2 grain bills have been 12 and 13 lbs, and I went with 5.5 gallons just b/c that's about all i can fit in the kettle. So 22 qts/12 lbs is almost 2 qts/lb.

My OGs are getting too high though (i expected more like 70-75%), so I can drop down to more like 10-11 lbs of grain and then I'll be over 2 qts/lb.


yeah, im atleast 1.5 qt/lb in all my BIAB. The high ratio might be the cause of the good efficiency. People will neighsay about how a high ratio extracts all kinds of unwanted flavors from the grain, but my beer tastes good, thats all that matters.
alcibiades is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 05:18 AM   #7
Feedback Score: 0 reviews
Recipes 
 
Join Date: May 2009
Location: Lacey, WA
Posts: 152
Liked 3 Times on 3 Posts

Default

Quote:
Originally Posted by Gardenhead View Post
Man, I can't wait to start AG brewing. I know that I want to start with BIAB since it is the easiest equipment upgrade from extract, and I keep reading great posts like this making me think it is a good idea. I just hope I don't forget all this information...

Is there any way to subscribe to threads? I see people talking about doing it, but I can't seem to find the button...
at the top of the thread there's a drop down menu that says thread tools. just click on that and then there's an option that says subscribe to thread
Retarded_Penguin_Brewing is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 05:34 AM   #8
Feedback Score: 0 reviews
Recipes 
 
Join Date: Feb 2010
Location: Austin, TX
Posts: 18
Default

Quote:
Originally Posted by Retarded_Penguin_Brewing View Post
at the top of the thread there's a drop down menu that says thread tools. just click on that and then there's an option that says subscribe to thread
Thank you! I totally missed that entire menu
Gardenhead is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 06:34 AM   #9
Be good to your yeast...
Feedback Score: 0 reviews
 
Saccharomyces's Avatar
Recipes 
 
Join Date: Jun 2008
Location: Pflugerville, Texas
Posts: 5,431
Liked 29 Times on 26 Posts
Likes Given: 2

Default

Nice! This BIAB thing is becoming my recommendation for beginner all grain brewing, it's cheap, easy and it works!
__________________
[How to Calculate Mash Efficiency | Do I Need a Yeast Starter? | My Ghetto Fermentation Chamber | Twitter | 6 Gal. HDPE Fermenters | Slanting Yeast | No Sparge Brewing]

Quote:
Originally Posted by Soperbrew
big brother only monitors facebook and untappd
Saccharomyces is offline
 
Reply With Quote Quick reply to this message
Old 02-26-2010, 07:27 AM   #10
Feedback Score: 0 reviews
 
cheesecake's Avatar
Recipes 
 
Join Date: Oct 2009
Location: Palatine il
Posts: 964
Liked 22 Times on 22 Posts
Likes Given: 2

Default

Yes i did 1 brew in the bag batch and im thinking about doing more..cleanup is a breeze


__________________
Primary:
Secondary:
Bottled:Plum Wine,Centennial Blonde,Sweet Browns HOP POP,Bruxeles Blonde bbs,American BarleyWine,RIS,
cheesecake is offline
 
Reply With Quote Quick reply to this message
Reply

Tags
biab

Quick Reply
Message:
Options
Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
Not hitting FG (too high!) cladinshadows Fermentation & Yeast 13 09-29-2009 12:21 AM
Hitting FG ks_medic Beginners Beer Brewing Forum 13 09-24-2009 02:02 AM
Good Efficiency with Un-Modified Cooler? killsurfcity All Grain & Partial Mash Brewing 14 03-18-2009 07:47 PM
Briess Under-modified pilsner = poor efficiency? cweston All Grain & Partial Mash Brewing 8 03-24-2007 11:02 PM
hitting the FG faber Beginners Beer Brewing Forum 5 01-09-2007 06:09 PM



FOLLOW US ON