teddy4xp

Recipes 

Might be talking about needing a ten gallon pot to do a full boil for a 5 gallon batch....you would be boiling 6+ gallons of worth. Hence the need for a larger pot. I have a 7.5 gallon pot and it is barely big enough for a full boil, would be much more comfortable with a 10 gallon pot.

TacoBrew

Recipes 

I do full boils just fine with a 30 qt pot. You can keep a boil pretty close to the top with fermcap and not blasting your burner. I usually do 6.75 gallon boils. Just turn the heat down as you approach boil.

brewmcq

Recipes 

I too MiaB (Mash in a Bag).. pretty much exactly like some others do.

I mash at 156F for 90 minutes, the put the bag in my BK which has 2 or 3 gallons of 170F water for 10-15 minutes, "teabag" it to get things good and churned up, then lift it out and place it on a stainless colander that goes over my BK. While that is dripping, I run the super-sweet liquor from my Igloo cooler (I think it's actually a Coleman, but it's blue, which works better than the orange ones).

Once the MLT is empty, I "top off" my BK by pouring 170F water over the bag of grains.

I have no clue what my efficiency is, and honestly don't care. My beer is coming out consistently good.

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Mysticmead

Recipes 

if you were doing a standard BIAB you would be using full volumes of water (no sparging). to determine the amount of water it would be desired batch + grain absorption + boil off +trub loss. As you can see, you quickly approach volumes greater than your 6 gallon pot. for my setup, with 12lbs of grain I would be starting with 8 gallons of water with a 5.5 gallon volume going into the primary. Add in the .7 gallons for grain and we're approaching the 9 gallon mark

houndsbreath

Recipes 

Thanks for the clarification. I'm shooting for 75% efficiency with 4.5 gallons plus ~2 gal sparge.
This calculator helped me get my head around the concepts here.
http://www.brew365.com/mash_sparge_water_calculator.php

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Mysticmead

Recipes 

first shoot for making great beer.. then work on the numbers. that said, double crush the grains and you'll hit 75%.. or better

newtobrew5

Recipes 

quick question on biab. i have a 32 quart boiling kettle, which i presume won't give me enough room for the water and grains (including grain absorbtion and assuming some higher gravity beers) needed to end up with a 5 gallon post boil volume (assuming i need roughly a 6.5-7 gallon pre-boil volume). i've haven't done the math (if somebody knows any rules of thumb, please let me know), but for example sake, say i biab with 6 gallons (or whatever will fit) along with the grain bag, and then i drain the bag and that leaves me around 5 gallons (assuming 1 gallon for grain absorbtion). Can I just throw the bag into my bottling bucket that has 2 gallons of sparge water that I've heated separately, tea bag it, sit for 15 minutes and then pour the wort from the bottling bucket (roughly 2 gallons) into the kettle, leaving me with my 7 gallons of pre-boil volume?

i want to step up to AG without having to buy new equipment (in this case including a larger BK).

wilserbrewer

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Recipes 

Yes you can

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