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Home Brew Forums > Home Brewing Beer > All Grain & Partial Mash Brewing > cold weather BIAB
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Old 11-11-2011, 12:55 AM   #1
mfraier
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Default cold weather BIAB

Now that winter is approaching I was wondering if anyone uses a 10 gallon water cooler to mash BIAB on colder temps? I dont think I can hold the mash temp very well this winter and was thinking about using a cooler with the bag to hold a consistant temp and then adding warmer water at the end for mash out at 170*
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Old 11-11-2011, 05:11 AM   #2
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I've made many beers this way. Sounds good.
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Old 11-11-2011, 10:00 AM   #3
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BIAB w/ a cooler will certainly work. I do both cooler mashes and BIAB in the kettle. If using a cooler, I find it a bit easier just to use a simple braid to lauter.

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Old 11-11-2011, 01:10 PM   #4
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I did my first AG batches with BIAB in my cooler and it worked great (75% eff). Then I made the addition of a manifold and a valve and started praying for no stuck sparges. After two batches everything seems fine.
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Old 11-11-2011, 05:15 PM   #5
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Have you thought about just throwing a couple of towels over your pot?
This work for me in 34 and warmer. I haven't tried any colder than that though..
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Old 11-11-2011, 06:27 PM   #6
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I put a 20degree sleeping bag over my pot. Usually keeps temps within a couple of degrees.
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Old 11-11-2011, 06:42 PM   #7
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I'm in Central FL, so we don't really have much of a winter, but on the 3-4 weekends that I brew during the FL winter when it is below 45-40, I'll still do my BIAB mash in the SS pot and wrap it in blankets inside on the tile floor in my mancave.

It is always a risky ventue, however, because some days SWMBO likes the smell of wort and some days she'll cut off my balls at a single wiff, though usually a risk I'm willing to take for a good mash temp...
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Old 11-12-2011, 11:57 AM   #8
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Quote:
Originally Posted by TopherM View Post
I'm in Central FL, so we don't really have much of a winter, but on the 3-4 weekends that I brew during the FL winter when it is below 45-40, I'll still do my BIAB mash in the SS pot and wrap it in blankets inside on the tile floor in my mancave.

It is always a risky ventue, however, because some days SWMBO likes the smell of wort and some days she'll cut off my balls at a single wiff, though usually a risk I'm willing to take for a good mash temp...
Umm...., How many balls are you missing now?

I brew on the kitchen stove and just leave the pot on the burner (turned off) while I'm mashing. Using a full volume brew in a bag, wrapping the pot in a towel with another towel on the lid will keep the mash within 1 degree for the full hour. Then I just pull the bag of grain out, squeeze the wort out, and bring it to a boil. My newish stove has Calrod burners that can boil 5 gallons easily. I might take it outside to chill if it isn't too cold but when the temperature goes below zero I wimp out and chill it in the sink.
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Old 11-13-2011, 05:33 AM   #9
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I use a 10 gal Rubbermaid to mash in, works great.
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Old 11-13-2011, 04:16 PM   #10
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BIAB is great. But If someone has -- or is going to acquire -- a cooler for mashing, I say forget the bag, put a false bottom in the cooler and mash and batch sparge in that.
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