---
product_id: 14485218
title: "Foam Inhibitor- 1 oz."
brand: "fermcap-s"
price: "£13.47"
currency: GBP
in_stock: true
category: "Fermcap S"
url: https://www.desertcart.co.uk/products/14485218-foam-inhibitor-1-oz
store_origin: GB
region: United Kingdom
---

# No blow-off tubing needed in 6 gal carboys 10% more retained bitterness Stops boil overs with 2 drops/gal Foam Inhibitor- 1 oz.

**Brand:** fermcap-s
**Price:** £13.47
**Availability:** ✅ In Stock

## Summary

> 🍻 Master the art of foam control—because your brew deserves perfection.

## Quick Answers

- **What is this?** Foam Inhibitor- 1 oz. by fermcap-s
- **How much does it cost?** £13.47 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/14485218-foam-inhibitor-1-oz)

## Best For

- fermcap-s enthusiasts

## Why This Product

- Trusted fermcap-s brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Simplify Your Setup:** Eliminate blow-off tubes in 6-gallon carboys—cleaner, easier brewing.
- • **Boost Your Brew's Bite:** Retains 10% more IBUs for a sharper, bolder beer flavor.
- • **Foam-Free Fermentation:** Just 2 drops per gallon prevent messy boil overs and krausen overflow.
- • **Cost-Effective Precision:** Tiny doses stretch a 1 oz bottle across countless batches—brew smarter, not harder.
- • **Versatile for Sodas & Root Beers:** Food-grade silicone formula controls foam in homemade sodas and root beers.

## Overview

Fermcap-S Foam Inhibitor is a food-grade silicone-based additive designed to prevent boil overs and excessive foam during fermentation. By adding just 2 drops per gallon, it increases beer bitterness retention by about 10%, controls krausen height, and eliminates the need for blow-off tubing in 6-gallon carboys. Also effective for reducing foam in homemade sodas and root beers, this 1 oz bottle offers long-lasting, cost-effective foam management for homebrewers seeking cleaner, more efficient brewing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006O93GLQ |
| Best Sellers Rank | #119,911 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #192 in Beer Brewing Bottles & Bottling |
| Brand | Fermcap-S |
| Brand Name | Fermcap-S |
| Color | White |
| Customer Reviews | 4.6 out of 5 stars 174 Reviews |
| Item Dimensions L x W | 5.1"L x 2.3"W |
| Item Length | 5.1 Inches |
| Item Weight | 1 Ounces |
| Manufacturer | Fermcap-S |
| Material | Glass |
| Material Type | Glass |
| Product Dimensions | 5.1"L x 2.3"W |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Fermcap-S
- **Color:** White
- **Item Length:** 5.1 Inches
- **Item Weight:** 1 Ounces
- **Manufacturer:** Fermcap-S
- **Material:** Glass
- **Product Dimensions:** 5.1"L x 2.3"W

## Images

![Foam Inhibitor- 1 oz. - Image 1](https://m.media-amazon.com/images/I/618ggoN8jEL.jpg)

## Questions & Answers

**Q: Has anyone used this product when making jam or jelly.  If so, how much should be used per batch?  Thank you.**
A: I use it when making beer. You use 1 drop per gallon of liquid

**Q: When doing a full boil on a 5 gal batch, do I need to add this right before the boil, or can i add it anytime before that?**
A: You can do it right before boil, or even during boil if you need to "save" it from boiling over.  You can also put it in the carboy to tame down foam production.

**Q: just wondering if a drop of this could be used to get rid of foam when pouring a picture out of a kegerator-- eliminating foam when pouring out?**
A: 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

**Q: Can I use this to stop foam on a carboy from going and foaming pieces to clog the air lock? I'm making some fruit wine if that matters.**
A: Yes you can. I believe it's double the dosage, and ad once it's in the carboy. But honestly, it's a lot easier and cheaper in the long run to get a blowoff hose.

## Frequently Bought Together

- Fermcap-S Foam Inhibitor- 1 oz.
- Whirlfloc Tablets- 10 tablets
- Five Star - 6022b_ - Star San - 32 Ounce - High Foaming Sanitizer

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.co.uk/products/14485218-foam-inhibitor-1-oz](https://www.desertcart.co.uk/products/14485218-foam-inhibitor-1-oz)

---

*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-07*