Foam Control (FermCap S)

Foam Control (FermCap S)

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No more boil overs, no more blow-off tubes. Once you’ve used Foam Control you’ll never brew without it again!
Foam control does just what its name suggests--it reduces foam production during  the hot-break portion of the boil, and it reduces the amount of krausen developed during fermentation.
Also known as FermCap S, Foam Control does not affect the head on your finished beer. In fact, it can actually increase the head by retaining head-forming compounds that would have been blown off during fermentation. It will settle-out of your beer before bottling or kegging as it is actually absorbed onto the surface of the yeast cells and filter media. 
Add two drops per gallon at start of fermentation. Comes in an eye dropper bottle for easy use. 1 oz is good for about 50 x 5-gallon batches of beer. Also available in bulk 1 gallon size.
Note: Keeps best when stored in the refrigerator.
Like Foam Control (FermCap S)? Then you will love CellarScience™ Foam Axe - Anti Foaming Agent!
Community Q&A

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If you enjoy boilovers then you don't need this
John c on Jan 15, 2021
yeast starters, brew kettle, carboy
Curtis S on Dec 8, 2020
If you enjoy boilovers then you don't need this
John c on Jan 15, 2021
to reduce krausen in fermenter
Valued C on Jan 8, 2021
yeast starters, brew kettle, carboy
Curtis S on Dec 8, 2020
Less boil overs
Dyami Q on Dec 3, 2020
Running low.
Jose L C on Dec 2, 2020
Looking to control fermentation over-flow / blowoff
John S on Nov 13, 2020
Does a great job mitigating boilovers in small brew kettles.
Nathan R on Sep 15, 2020
To control krausen
Ryland Matthews on Sep 7, 2020
watched video and researched
Gary Sanger on Aug 27, 2020
First two batches blew out my airlocks.
Jeff H on Aug 5, 2020
To avoid blowouts when brewing.
Noah A on Jul 22, 2020
No blowoff!
David Roberts on Jul 15, 2020
it works
Steven D on Jul 9, 2020
Trying to control foam in yeast starters
William H B on Jun 16, 2020
Wouldn't brew without it. Prevents messy boil-overs
Kevin Dyson on Jun 16, 2020
Makes life sooooo much easier
Bradley Korte on Jun 8, 2020
to control foam on boil
Ariel Zelaya on Jun 1, 2020
try pressure fermenting in a keg
SHANE on May 29, 2020
Never tried it before, but saw it in a video and thought I'd give it a try
Scott S on May 14, 2020
Ever had a boil over? Me too. No longer with this stuff.
Eric O on May 9, 2020
Have used this for years and it's a gr8 product mentioned it to many people and they are surprised to hear about it.
Steve Van P on May 5, 2020
I don't like blowing things up with foam
Geoffrey N on Apr 29, 2020
Need it for boil overs
Ethan W on Apr 28, 2020
Best foam control I’ve had, I currently have the 5 star foam control and prefer fermcap
Chris Mylroie on Apr 18, 2020
Minimize head space while fermenting in keg
Eric N J on Apr 15, 2020
To control hot break on my BIAB system.
John C P on Apr 14, 2020
avoid kitchen disasters
Patrick Bobosky on Apr 13, 2020
It works really well
Peter D on Apr 7, 2020
Used it before and helped me brew larger batches without boilover
J S on Mar 29, 2020
Keeps the kettle from boiling over when filling close to the top
Nicholas D on Mar 19, 2020
Low headspace
William d m on Mar 18, 2020
Excellent for controling boil over, quick to ship
Frank A on Mar 13, 2020
Reduce krausen during keg fermentation
Stephen O on Feb 20, 2020
To stop the madness
Andrew B W on Feb 8, 2020
ummm...no foam is good ;-)
jeffrey w on Jan 24, 2020
Keep fermentation in check
Adam Peppas on Jan 21, 2020
I don't like boil overs!
RYAN H on Jan 16, 2020
So my imperial stout doesn't boil over
Joshua Guthrie on Jan 9, 2020
To stop foaming
Gregory W on Dec 14, 2019
Prevent blow off in fermenter
David H on Dec 11, 2019
making beer
David B on Nov 28, 2019
Kyle W on Oct 29, 2019
Prevent boil overs
Will M on Oct 25, 2019
yeast starter control
mike a on Oct 19, 2019
My fermenter keeps blowing out
Adam Miller on Oct 18, 2019
Read that this is a good thing to have to avoid boil over and blowout
Tim B on Oct 15, 2019
To ferment in kegs under pressure
Shannon W on Sep 21, 2019
keep foam down
Bobby F on Sep 12, 2019
Awesome price
Randy W on Sep 3, 2019
Foam control
JOHN DUNLOP on Aug 28, 2019
to reduce krausen in fermenter
Valued C on Jan 8, 2021
Less boil overs
Dyami Q on Dec 3, 2020

4.7 / 5.0
20 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Rated 4 out of 5
Instant Results
I use it for foam/krausen control when I make a starter. I have 2.5L starters with a 5L flask on a stir plate and the yeast still climb out. When I first used this, the yeast was already foaming up, I put a drop of this in, looked away for a second, and when I looked again, the foam was gone completely. Instant results. I had to add another drop the next day, but it did the job by preventing the yeast from climbing out of the flask. Not sure about the chemistry and physics though...
December 31, 2020
1 month ago
Rated 5 out of 5
So effective it is almost magical
We have used Foam Control for the last 3-4 years with fantastic success. Really helps prevent boil overs (and therefore keeps clean up easier too) when we are pushing our half barrel system to the limit. Also super effective in fermentation!
December 24, 2020
1 month ago
Rated 5 out of 5
Pedido Lllego Completo
Realice el pedido a morebeer y este llego a tiempo, me economice dinero es fabuloso
December 17, 2020
1 month ago
Rated 5 out of 5
Been using for years to help avoid boil overs.
December 15, 2020
1 month ago
Rated 5 out of 5
No boil overs!
Boil the wort hard without fear of a boil over. Use it in the starter in a 2 L flask to virtually eliminate a boil over.
November 28, 2020
2 months ago
Rated 5 out of 5
Life saver or rather Beer saver!
I don't know how I've lived without this for so many years. Instantly all of my boiling over or exploding fermentor issues are gone. I can't recommend it enough.
November 18, 2020
2 months ago
Rated 5 out of 5
No boil overs
Worked great on my new Brewzilla, let me push my boil volume without the worry of a boil over.
October 19, 2020
3 months ago
Rated 5 out of 5
Must have percaulton
Foam is for Beer Not your Boil!
September 2, 2020
4 months ago
Rated 2 out of 5
Does it work?
Still can't tell if it's actually doing anything at the recommended dosages, but will try again on the best batch with a yeast I know likes to try and escape my carboy.
June 25, 2020
8 months ago
Rated 5 out of 5
Does what it says as long as you use enough.
I made a mistake and only added 2 drops to my entire batch right before the hot break. Because of this I still almost had a boil over. HOWEVER, it immediately knocked down ALL of the foam that was in the kettle at that time. I have no doubt it would have worked well if I had added the correct amount.
May 29, 2020
8 months ago