Fermcap-S Foam Inhibitor - 1 oz.

Item Number: 99-3017

Sale price$4.99
In stockEligible for Fast & Free Delivery


Anti-Foam Drops

Minimize the loss on fermenting beer and transfer a slightly larger quantity in your existing fermenter.  An anti-foam agent that can be used during the boil or during fermentation to eliminate messy blowoff. As soon as fermentation is over, this insoluble compound settles out and remains behind when the beer is racked. It will not affect the finished beers flavor, appearance or head retention.


Use a few drops per gallon for boil, or two drops per gallon for fermentation. Comes in a one ounce eyedropper bottle. Keep refrigerated until use.

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Customer Reviews

Based on 8 reviews
David Sleamon
Foam control

Stopped by to get some more but found the store permanently closed with no warning. I will miss the awesome knowledgeable employees. They are what made AIH so great!

Adam Garrison
Great for full volume fermentation

I ferment in kegs and was limited to 4-4.5 gallons per batch. 10 drops of this miracle potion and I can fill the kegs to just below the gas dip tube with no blow off. Highly recommended if you're pushing your vessels, either fermenting or boiling, to their volume limits.

jim asa
Stopped the foam

Used honey in some brews and got a lot of foam in the air lock, foam control did a great job controlling the foam, great product, will always use.

It works

I added 1 drop per gallon to a fermenting blonde ale that was threatening to blow the top off my carboy. That was about an hour ago and now the krausen has shrunk down to about a quarter of the size it was and I'm happy. This stuff is worth it's weight in gold because now I don't have to deal with blowoff tubes, which I hate.

Works Great!

I just started fermenting in corny kegs and wanted to maximize my batch size. I put just under 5 gallons in a corny with foam control and just had a little krausen in my blowoff.

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