All Grain "Partial Batch" BIAB-ing? - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > General Techniques > All Grain "Partial Batch" BIAB-ing?

Reply
 
Thread Tools
Old 12-13-2012, 09:28 PM   #1
acidrain23
Recipes 
 
Nov 2011
Chicago, IL
Posts: 354
Liked 13 Times on 12 Posts



So, I've been doing partial mash BIAB brewing for a while now, typically using 3-6 lbs DME, and about 5-7 lbs of grain. Its been working well, but the other day I attempted an all grain 3-gallon batch (which came out to 7-lbs of grain, about as much as I can handle weight wise). This got me thinking though- is there any reason I couldn't mash a 7 lb BIAB, remove the spent grains, and then do another 7lbs fresh in the same wort? It would increase my mash time by an hour, but I could try out some bonafide all grain recipes. Will it work?

 
Reply With Quote
Old 12-13-2012, 09:31 PM   #2
ZKramer
Recipes 
 
Feb 2012
Whitestone, NY
Posts: 9

Are you considering this because of the weight being a lifting issue, a bag strength issue, or a space in your kettle issue?

 
Reply With Quote
Old 12-13-2012, 09:40 PM   #3
acidrain23
Recipes 
 
Nov 2011
Chicago, IL
Posts: 354
Liked 13 Times on 12 Posts


Quote:
Originally Posted by ZKramer View Post
Are you considering this because of the weight being a lifting issue, a bag strength issue, or a space in your kettle issue?
All of the above.

1) I have a seven gallon kettle, so I can really only accomplish a five gallon boil tops. I supposed it would be POSSIBLE to do two seven lb bags at once but would be pushing it volume wise.

2) I like to brew inside, especially during the Chicago winters (and I'm an apartment dweller, though I do have access to a back yard).

3) I also don't have the fundage to upgrade with propane burners, brewing scupture, giant kettles, mash tun, and so forth at the moment (someday though, probably after moving into a legitimate house of our own).

4) More than seven pounds of grain, wet- is just too heavy, and I am adverse to splashing myself with boiling wort (and I am accident prone to begin with)


 
Reply With Quote
Old 12-13-2012, 11:17 PM   #4
ZKramer
Recipes 
 
Feb 2012
Whitestone, NY
Posts: 9

Hmm, if it was only one or two I was going to suggest alternatives, but the combinations of those limitations have stumped me. My only thought is to use less water in the mash, add it back for the boil, and rig a pulley system for the 14 lbs of wet grain (which really is surprisingly heavy, but it doesn't sound like that would work for you.

We'll have to wait for a more experienced brewer to weigh in.

 
Reply With Quote
Old 12-15-2012, 12:56 AM   #5
Derick_Z
Recipes 
 
Sep 2012
Greensboro, North Carolina
Posts: 74
Liked 2 Times on 2 Posts


I'm very interested in this. You'll have to let us know if you try it and it works!

 
Reply With Quote
Old 12-15-2012, 12:56 PM   #6
RM-MN
HBT_SUPPORTER.png
Recipes 
 
Nov 2010
Solway, MN
Posts: 9,407
Liked 1631 Times on 1296 Posts


Since your first wort would be at mashing temperature for twice as long and in contact with the enzymes that much longer the long chain sugars might be converted and your beer end up drier than you prefer but maybe not too. Try a batch. You be the judge of the results. I think it will turn out fine.

 
Reply With Quote
Old 12-16-2012, 02:07 AM   #7
ChickenSandwichCarl
Recipes 
 
Nov 2012
Posts: 20

Why not just get a 2nd 5 gal pot(and 2nd bag)and just split the batch and combine back in the fermenter? Not really that much extra work.

 
Reply With Quote
Old 12-16-2012, 01:34 PM   #8
libeerty
 
libeerty's Avatar
Recipes 
 
Jul 2012
Posts: 496
Liked 102 Times on 68 Posts


I think Carl is right. You could scale down your five gallon recipe to 2.5, do two of them, merge in fermenter.
__________________
Tried to keep up with this signature, but just couldn't.

 
Reply With Quote
Reply
Thread Tools


Similar Threads
Thread Thread Starter Forum Replies Last Post
"Little Harold" - All-grain German Hefeweizen, Small Batch Justibone Recipes/Ingredients 4 02-16-2016 02:01 PM
First all-grain batch + "prototype" single-tier stand mmccurdy Beginners Beer Brewing Forum 2 02-12-2012 12:15 PM
Bucephalus "Martingale" - partial mash "fast" Festbier kwantam Recipes/Ingredients 3 03-23-2011 07:31 PM
"The way it Gose" 3 Gallon Partial Grain cstarner Recipes/Ingredients 2 02-21-2011 01:26 PM
How to change an "all-grain" recipe into a "partial" recipe? breez7 Beginners Beer Brewing Forum 6 03-15-2010 12:35 PM


Forum Jump