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Home Brew Forums > Home Brewing Beer > General Techniques > Preventing Boil Overs - It's Simple
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Old 06-20-2008, 06:07 PM   #11
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Thats an awesome idea BM but are you at all worried about increasing your boil off rate like Germey said??

I like the marble idea too
I did overshoot my boil off (further proof that I had a bigger boil than normal) but like anytime that happens, I just topped off the keggle up to my target mark before chilling.


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Old 06-20-2008, 06:07 PM   #12
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You can use Fermcap in the boil, can't you? Red was mocking me for boiling over a 5-gallon batch in a keggle (at least until Jester nearly boiled over a 10-gallon batch in a 25-gallon pot). I've thought anout getting some of that and experimenting with it both in the boil and for fermentation.
Yes, you certainly can use Fermcap (aka foam control) drops in the boil. I don't even think twice anymore about putting 6.5 gals of wort in my 7.5 gal pot (stovetop) or 13.5 gals in my keggle. That stuff is magic. And no fan to lug around, either!


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Old 06-20-2008, 07:00 PM   #13
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Yes, you certainly can use Fermcap (aka foam control) drops in the boil. I don't even think twice anymore about putting 6.5 gals of wort in my 7.5 gal pot (stovetop) or 13.5 gals in my keggle. That stuff is magic. And no fan to lug around, either!
So if you are starting with 13.5 in the keggle, what are you cooking that down to? I am building my keggle system now, and trying to figure out what my batch sizes are going to be. I hear people talking about anything from 10-12 gallons.
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Old 06-20-2008, 07:35 PM   #14
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So if you are starting with 13.5 in the keggle, what are you cooking that down to?
About 10.5 - 11 gals. With trub loss, that gets me to about 5 gals in each of two kegs.
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Old 06-20-2008, 07:44 PM   #15
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About 10.5 - 11 gals. With trub loss, that gets me to about 5 gals in each of two kegs.
Kind of the way Jamil always talks about it...
brew 6 gallons, leave 1/2 gallon in the kettle,
leave 1/2 gallon in the carboy,
put 5 gallons of clean beer into the keg.

I had not thought about the keg issue...
since I prefer to keg everything, then shooting for batches
larger than 10 gallons does not make much sense.

Hmm... but it might be kind of nice to fill two kegs, and put a couple gallons into a third,
carb it up, and then bottle that up for giving to friends and what not...
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Old 06-20-2008, 07:51 PM   #16
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You can do the same thing with some stainless steel nuts. Better than buns of steel.
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Old 06-20-2008, 09:01 PM   #17
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I know it first hand in my beers, and the few micro-breweries I've visited have said the same thing. "If it ain't about to boil over...it ain't boiling hard enough."
I disagree with that. All that's necessary to get rid of enough DMS is 6-8% boil-off. My last Helles, I went a step further and simmerd it for the first 30 min with the lid on (at least somewhat, as it would boil over with the lid completely on) and the last 30 min I boiled at regular strength. At that point the proteins were already coagulated and I didn't have to worry about a boil over.

This was 2 weeks ago and so far I cannot detect any DMS in the hydrometer samples. To early to tell, by I may have found a way to adopt commercial boiling practices to save some propane for the home brewer.

BTW, this only applies to immersion chiller use where you cool the complete wort volume immediately after flame-out

When it comes to formation points for the bubbles, I think fixing something in the middle of the kettle or keggle would be nice. This way the bubbles would form in the center of the bottom, rise to the top and set a very even wort circulation in motion.

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Old 06-20-2008, 09:22 PM   #18
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You can do the same thing with some stainless steel nuts. Better than buns of steel.
LOL. I thought about the SS Nuts on the way home.
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Old 06-21-2008, 12:26 PM   #19
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Sweet... there is how I will make my first million. Contract a company to produce SS jacks that I can not only sell to yuppies who want "only the best" for their children, but also the the homebrew community as "mechanical foam dispersion units".
Or late night ninja caltrops.
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Old 06-21-2008, 05:57 PM   #20
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What's wrong with spraying down the foam with a garden hose sprayer. Seems to work like a charm for me.


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