Logo
 
MoreBeer!
Foam Control (FermCap S)

Foam Control (FermCap S)

Please select from the following option(s) to see pricing and availability.
Volume: 
Description

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

Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 50 answers
Why did you choose this?
MoreFlavor Store
Does a great job mitigating boilovers in small brew kettles.
Nathan R on Sep 15, 2020
watched video and researched
Gary Sanger on Aug 27, 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
roadrner 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
When
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
Good control
Adam Peppas on Aug 28, 2019
So prevent foamovers when oxygenating the wort pre-pitch.
Haley H on Aug 28, 2019
Yeast starter
Tom H on Aug 28, 2019
Useful
Jeremy K on Aug 28, 2019
Ran out
Lee K on Aug 28, 2019
Brew Better Beer
Steven C J on Jul 27, 2019
To control krausen
Ryland Matthews on Sep 7, 2020
First two batches blew out my airlocks.
Jeff H on Aug 5, 2020
Reviews

4.6 / 5.0
13 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
10
2
0
1
0
Must have percaulton
Foam is for Beer Not your Boil!
September 2, 2020
Purchased
3 weeks ago
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
Purchased
4 months ago
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
Purchased
4 months ago
worked great
I put it in my boil and didn't come close to a boil over, I think next time I will put it in my fermenter, as this one needed a blow off tube and spit everywhere
April 21, 2020
Purchased
5 months ago
Works great!!!
Worked great I’m my starter!!! Just two drops and no boil over.
March 30, 2020
Purchased
6 months ago
It stopped the foam
Worked like a champ to control the foam! It was a bit difficult using an eye dropper as the liquid was rather thick!
December 27, 2019
Purchased
9 months ago
Fermcap
I have only used once and I didn't use enough, only added 3-4 drops to 7 gallons, seemed to help especially during fermentation? I will use next batch and add the amount recommended at 2 drops per gallon, still seemed to knock down foam!
September 3, 2019
Purchased
1 year ago
Makes boil-over worries a thing of the past
Used before the boil of a large batch of Belgian Triple. No excessive foaming at all. One caveat though is maybe to re-add some drops before fermentation too. I didn't do this and had a pretty significant blow-off and mess. Maybe my initial addition during the boil dropped out and was not effective for the fermentation portion?
August 23, 2019
Purchased
1 year ago
I've had zero fermentation messes since I started using
Been using for a few years in my fermenters so I don't lose to my blow off vessel what I should be drinking. Had a hothead starter going the other day and I should've used a drop or two.
June 8, 2019
Purchased
1 year ago
Great product at a good price
April 14, 2019
Purchased
1 year ago