Fermcap S Foam Control

  • Item #A12
  • Price: $10.99
- +

In stock, will ship on Friday, June 9

A milky liquid emulsion that reduces foaming during fermentation, without affecting heading or the flavor of the finished beer. The active food grade ingredient,dimethylpolysiloxane, reduces surface tension of the wort, enabling you to have vigorous ferments in smaller fermenters. If you have trouble with your fermenter overflowing (particularly in warmer months) this additive is for you.

Also great for eliminating 'puking' in distilling. In washes composed of molasses or all grain, boil overs can occur in the still, clouding your spirit and basically ruining your day. Keep your distillate crystal clear by adding ½ teaspoon of Fermcap S to your 5 gallon molasses or all grain wash before you run your still.

Fermcap S™ settle out in the yeast sediment when fermentation ends. Use ¼ to ½ teaspoon per 5 gallon batch of beer, adding right before you add the yeast. Preserved with sodium metabisulphite. This 4 fluid oz. bottle is good for many batches and should be stored in a cool place, and shaken before each use to unify the emulsion.

Click  here for a MSDS sheet on Fermcap.

Average rating 9.9 out of 10 ( based on 10 reviews )

No mess

Review by Mike on 7/27/2021

I use to think that if you have temp control and adequate fermenter head space that blow off / foam over shouldn't be an issue. But there are a few yeast strains that changed my mind (most recently Verdant) due to the massive krausen. I added 1/2 teaspoon per 5 gallon fermenter and problem solved. The only downside is that I judge the fermentation progress by the krausen and Fermcap S makes that a bit more subtle.

Great product

Review by David on 2/27/2021

This product works in the boil or during fermentation. It has saved me a LOT of work and heartache from boil overs and clogged airlocks. Recommended!

This + A Fan = No Boil Overs

Review by Travis on 8/12/2015

I start at 14.5 gallons in a keggle. That's almost over as it gets to a boil. I use this and keep a fan on top of the wort and I don't get much more than a sizzle over. I also use this in my fermentor to keep from pumping tons of yeast out.

Multi-purpose, kettle and fermenter

Review by John on 1/24/2014

- In the kettle, just before boiling, helps prevent boil-overs if timed properly - In the fermenter, very helpful in preventing krausen blow-outs. Use it when the krausen is gaining in thickness and before it reaches the top of the fermenter. Usually a very light "line" of it does the trick and allows you to use the maximum fermentation space.

Fermcap: double benefit

Review by Jeff on 12/24/2013

Having recently had trouble with fermenting brews blowing through the airlock and even lifting the lid of my fermenter, I have added 1/4 tsp of Fermcap just before yeast addition in my last two brews and have had no trouble with "foam-overs." In addition the sediment in the bottom of the fermenter is more coagulated and I get a much cleaner transfer of the brew to a secondary fermenter and when bottling, with no change in flavor of the brew. Fermcap is a simple and useful addition to the brewing process.

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