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Old 02-25-2013, 03:10 AM   #21
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wilserbrewer's Avatar
May 2007
Jersey Shore, New Jersey
Posts: 9,600
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Originally Posted by GenIke View Post
Think I could get a 2.5 gallon batch out of 4 gallon pot?
Yes easily...boil 3 1/2 gallons high gravity in the 4 gallon pot and you have 5 gallons...of course not the easiest approach, but it can be done!!!

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Old 02-25-2013, 07:40 AM   #22
Ogri's Avatar
Sep 2011
Osaka, Japan
Posts: 840
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Originally Posted by GenIke View Post
Thanks for the informative post.

I'm expecting a brew demon sometime soon and thought this might be a way to both use my new toy and experiment with all grain or at least a partial mash. Think I could get a 2.5 gallon batch out of 4 gallon pot?
Most definitely!!!

I usually mash with about 3.5 gallons, maybe slightly more. Start with just over 3 gallons in the kettle, heat up to about 150, add the grains, then top up to the kettle's limit and add a little more heat to get to mash temp. Do a couple of squeezes/dunk sparges and then a final squeeze to get as much liquid out of the grain as possible.

Ended up adding about 1 litre to the boil near the end last Friday, because had done a particularly strong rolling boil and it looked like the level was a little low in the kettle. Managed to get a bit over 2.5 G into the Mr. Beer LBK whilst comfortably leaving a bit of kettle trub, mostly hop sediment, behind.

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Old 02-25-2013, 04:50 PM   #23
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Jun 2012
London, Ontario
Posts: 954
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I did a 2 Gallon, full volume - no sparge, AG Oatmeal Stout this weekend with 4.375lb of grain, and 3.5 gallons strike water.

My 4 gallon pot was full to be sure, but it held.

Wrapped it in a towel, a sweater, and my winter jacket and only lost 2-3 degrees over 60 minutes.

Not too Shabby.
Fermenter 1 - Vienna /Saaz SMaSH
Fermenter 2 - Dry as a bone
Drinking - various craft brews, Tiny Bottom PA
Beer styles I'm trying to nail down: APA, Porter, Mild, Amber, & Something Yellow and Fizzy.

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Old 02-25-2013, 05:33 PM   #24
Dec 2012
Schenectady, NY
Posts: 447
Liked 61 Times on 45 Posts

I do 4G BIAB batches using a 3.5g pot for mashing and my 5g brew pot for dunk sparging. I use beersmith to make my recipes and the volume and temp calculations work out perfectly every time. I get about 70percent efficiency so I can't do big beers but it's perfect for average gravity beers.

I wrap my mash kettle in a towel and sit it on the the radiator and never lose a single degree. It's ghetto but it works!

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