---
product_id: 14485218
title: "Foam Inhibitor- 1 oz."
brand: "fermcap-s"
price: "₹ 2217"
currency: INR
in_stock: false
reviews_count: 8
category: "Fermcap S"
url: https://www.desertcart.in/products/14485218-foam-inhibitor-1-oz
store_origin: IN
region: India
---

# 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:** ₹ 2217
**Availability:** ❌ Out of 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?** ₹ 2217 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.in](https://www.desertcart.in/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.

## 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: stops your boil overs in its tracks. - 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.

## 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 | #202,228 in Kitchen & Dining ( See Top 100 in Kitchen & Dining ) #337 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)
![Foam Inhibitor- 1 oz. - Image 2](https://m.media-amazon.com/images/I/51NSbS2e5IL.jpg)
![Foam Inhibitor- 1 oz. - Image 3](https://m.media-amazon.com/images/I/51QvyLL964L.jpg)
![Foam Inhibitor- 1 oz. - Image 4](https://m.media-amazon.com/images/I/61nGSHOELoL.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.

### ⭐⭐⭐⭐⭐ 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.

### ⭐⭐⭐⭐⭐ Hello, foam-free smoothies!
*by T***O on February 25, 2023*

Unlike all the home brewers who buy this product, I use it to cut down on foam when I make smoothies. Casein and whey protein can be terribly foam when you blend them for anything more than a whirl or two, and this knocks out the foam almost completely. I love it for that. It’s also great for when you’re cooking things that love to bubble out of the pot. How much do I use? Let’s do some measurement math. The bottle notes that the defoamer should not be used in excess of 200 PPM (this is the max concentration approved by the FDA). That is about 11 drops per gallon, max, or about 2.5 drops for one quart of liquid (more or less my smoothie size). If that’s the max, what’s the minimum effective amount? The bottle states that the low end of the scale is 1 drop per gallon, or approximately 0.25 drops per quart. How do you get 1/4th of a drop out of the dropper bottle? You can drop it into a small measured quantity of water (say, 4 Tbsp.), mix it, and use 1/4th of the quantity, saving the rest for another time (or spill it out). For my daily smoothie routine, this became a hassle, so what I do is squeeze out a bit until it just starts to bulge from the dropper, and dab that onto a spoon which I stir into my smoothie liquid. Is it exactly a quarter drop? Probably not. But it’s definitely far less than the 2.5 drop maximum concentration. And that amount seems to be ideal for cutting foam for my purposes. Some folks might ask, is this safe to consume? The answer is yes. The defoamer is made from silicone, but don’t freak out, it is the same compound that food manufacturers use to cut foam in their liquid food products. And as noted, it’s FDA approved for use up to 200 PPM. How do I know? My food scientist ex confirms this. If you’re a person who is super granola, all natural and aggressively organic, you’ll probably shrink in horror at the thought of consuming a chemical, whether or not it’s been tested and approved by the FDA. That’s fine — I assume you are also probably OK with smoothies that have 2 inches of foamy head on them. You do you. As for me, I’m ok with the relative risk of consuming half a drop a day in exchange for glorious foam-free smoothies. I’ll update this review if it turns out I get silicone-induced cancer in 20 years - stay tuned!

## 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 India*
*Store origin: IN*
*Last updated: 2026-05-27*