PersonalBrewer
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The rule of thumb is half the kettle size for BIAB.
My problem is I keg with 5 galllon kegs. After getting tired of having a keg and a half I came up with the following procedure:
I am using a 1.2 megapot from Northern Brewing it's a 15 gallon pot that has some leeway above 15 probably another gallon or so. You may need to adjust volumes and recipes for a different pot
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Put 9 3/4 gallons of water in 15 gal brew vessel and bring to strike temp.
Put in roughly 30 lbs of grain (be sure you can lift the wet grain bag, I use a pulley.)
Mash as usual
pull bag/basket add about 5 1/2 gals of water (/sparged wort) to about 13 3/4 gals
That's the point where I know I can knock down potential boilovers with a water spray bottle) - after first ten minutes it settles down and I don't really have to stand there worrying about boilovers.
I boil for an hour usually, after about 30 minutes I add 1.75 liter boiling water (because that's the size electric kettle we have.)
Follow your regular routine after boil to put in fermenters.
I usually wind up with about 10.5 gallons of wort in the fermenters.
Works for me.
I have done about 30 batches with various variations this version is what I have been doing for probably 10 or so batches I like high gravity beers and around 7% ABV. Obviously, you can use less grains if you wish.
The basic principle is that you can use 30 lbs or so of grain ( I consistently brew a 30.75 lb recipe) and simply add water or sparged wort to come up to the volume of beer you want to get out.
If you're bottling, probably not for you. but if you're using 5 gal kegs you might want to go this way if you're not doing something similar
My problem is I keg with 5 galllon kegs. After getting tired of having a keg and a half I came up with the following procedure:
I am using a 1.2 megapot from Northern Brewing it's a 15 gallon pot that has some leeway above 15 probably another gallon or so. You may need to adjust volumes and recipes for a different pot
____________________________
Put 9 3/4 gallons of water in 15 gal brew vessel and bring to strike temp.
Put in roughly 30 lbs of grain (be sure you can lift the wet grain bag, I use a pulley.)
Mash as usual
pull bag/basket add about 5 1/2 gals of water (/sparged wort) to about 13 3/4 gals
That's the point where I know I can knock down potential boilovers with a water spray bottle) - after first ten minutes it settles down and I don't really have to stand there worrying about boilovers.
I boil for an hour usually, after about 30 minutes I add 1.75 liter boiling water (because that's the size electric kettle we have.)
Follow your regular routine after boil to put in fermenters.
I usually wind up with about 10.5 gallons of wort in the fermenters.
Works for me.
I have done about 30 batches with various variations this version is what I have been doing for probably 10 or so batches I like high gravity beers and around 7% ABV. Obviously, you can use less grains if you wish.
The basic principle is that you can use 30 lbs or so of grain ( I consistently brew a 30.75 lb recipe) and simply add water or sparged wort to come up to the volume of beer you want to get out.
If you're bottling, probably not for you. but if you're using 5 gal kegs you might want to go this way if you're not doing something similar