---
product_id: 14485218
title: "Foam Inhibitor- 1 oz."
brand: "fermcap-s"
price: "B/.37"
currency: PAB
in_stock: true
reviews_count: 8
category: "Fermcap S"
url: https://www.desertcart.com.pa/products/14485218-foam-inhibitor-1-oz
store_origin: PA
region: Panama
---

# 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:** B/.37
**Availability:** ✅ In Stock

## Summary

> 🍻 Master your foam, master your brew!

## Quick Answers

- **What is this?** Foam Inhibitor- 1 oz. by fermcap-s
- **How much does it cost?** B/.37 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/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

- • **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 brews, maximizing value.
- • **Streamlined Brewing Setup:** Eliminates the need for blow-off tubes in 6-gallon carboys—less gear, more ease.
- • **Versatile for Sodas & Root Beers:** Food-grade silicone formula controls foam in homemade sodas and root beers too.

## Overview

Fermcap-S Foam Inhibitor is a food-grade silicone-based additive designed to prevent boil-overs and control krausen foam during fermentation. By adding just 2 drops per gallon, it increases beer bitterness retention by about 10%, eliminates the need for blow-off tubing in 6-gallon carboys, and also works effectively to reduce foaming in homemade sodas and root beers. Compact and cost-efficient, it’s a must-have for professional and hobbyist brewers seeking a cleaner, more controlled brewing process.

## Description

Prevent boil overs on the hot side, add 2 drops per gallon for a nice rolling boil. On the cold side, fermcap keeps the krausen in your fermenter to 1/2". in a 6 gallon carboy there is no need for blow off tubing when you use this product. Use only two drops per gallon at the start of fermentation. If you add fermcap during the boil you do not need to add it again in your fermenter.

Review: Works for making root beers and sodas to inhibit foaming - This product is food grade silicone based, which is similar to what is used by major name brand soda bottling manufacturers to prevent foaming in the manufacturing and bottling process. When making homemade root beer or sodas made from homemade syrup (strawberry for example) using fresh fruit, they can tend to get very foamy and make it difficult to carbonate. 1-2 drops of this product in the soda bottle keeps this foaming to a minimum, allowing me to use the soda maker to force carbonate the soda. If you make homemade root beer or sodas, this can be added to prevent excessive foaming with forced carbonation methods or traditional yeast in the bottle methods. The bottle is small but you will only use 1 or 2 drops at at time so overall, I believe it to be cost effective.
Review: PERFECT - This Fermcap saves me a lot of hassle during my brew day. I can just add a few drops and no more boil over scares. This product is inexpensive and the convenience outweighs the price.

## Features

- Fermcap-s foam inhibitor
- Used in the Fermenter, it increases the bitterness of your beer (retained ibus) by about 10%
- Fermcap works very well for brewers who Use a Carboy for primary Fermentation
- Item Package Dimension: 5.1" L x 2.3" W x 1.2" H

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B006O93GLQ |
| Best Sellers Rank | #206,606 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #331 in Beer Brewing Bottles & Bottling |
| Brand | Fermcap-S |
| Brand Name | Fermcap-S |
| Color | White |
| Customer Reviews | 4.5 out of 5 stars 171 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works for making root beers and sodas to inhibit foaming
*by R***0 on January 1, 2025*

This product is food grade silicone based, which is similar to what is used by major name brand soda bottling manufacturers to prevent foaming in the manufacturing and bottling process. When making homemade root beer or sodas made from homemade syrup (strawberry for example) using fresh fruit, they can tend to get very foamy and make it difficult to carbonate. 1-2 drops of this product in the soda bottle keeps this foaming to a minimum, allowing me to use the soda maker to force carbonate the soda. If you make homemade root beer or sodas, this can be added to prevent excessive foaming with forced carbonation methods or traditional yeast in the bottle methods. The bottle is small but you will only use 1 or 2 drops at at time so overall, I believe it to be cost effective.

### ⭐⭐⭐⭐⭐ PERFECT
*by M***J on May 7, 2024*

This Fermcap saves me a lot of hassle during my brew day. I can just add a few drops and no more boil over scares. This product is inexpensive and the convenience outweighs the price.

### ⭐⭐⭐⭐⭐ stops your boil overs in its tracks.
*by D***M on August 17, 2017*

first time using this stuff and Ive brewed beer for 8 years. lowering hydrophilic interaction, what a great addition to any homebrewers closet. This order came with 2 bottles, assuming 0.5 oz each. I didnt look at the label. I added about 12-15 drops to during my boil and and broke up the foam within a few minutes. No risk of boil over. In my brewing experience I've have 4-5 boil overs, they can sneak up on even veteran brewers. When your making a 10 gallon or higher batch removing the heat source is not an option, stirring can cause the boil over to accelerate before break up. This product is a sure fire way of eliminating the issue. Now as of what it does to the beers flavor, I do not know yet. I will find out in 6 weeks.

## Frequently Bought Together

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

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-01-31*