Fermcap-S

Fermcap-S Foam Inhibitor, 2 oz

An antifoam that controls boil-overs and krausen; the label says two drops per gallon. The maker notes it can raise retained bitterness by about 10%.

  • 2 drops per gallon
  • Fewer boil-overs
  • Less blow-off

Best for Small kettles and full fermenters

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Specifications

Use (per label)2 drops per gallon
TypeSilicone antifoam
Size2 oz

As stated by the maker or seller. Specs can change between versions and sellers; confirm on the listing. We did not test this product.

From the maker

  • Use only two drops per gallon at the Start of Fermentation
  • Used in the Fermenter, it increases the bitterness in your beer (retained ibus) by about 10 percent
Chemicals: label directions onlyUse sanitizers, cleaners, acids and salts only at the dilution and contact time on the label. Wear eye protection with acids and powders, add acid to water, keep them away from children and food prep. Star San is EPA-registered (Reg. No. 65001-1) as a no-rinse sanitizer at label dilution.Source: EPA Star San label
Sulfites and sensitive guestsCampden tablets and potassium metabisulfite add sulfites. Commercial wine at 10 ppm or more must say “Contains sulfites”; home wine is not labeled, so tell sulfite-sensitive guests (often people with asthma).Source: TTB: sulfite declaration
Brewing water chemistry calculatorSalt additions to ppm, SO4:Cl and residual alkalinity.

Full listing title: Fermcap-S Foam Inhibitor- 2 oz.