Best Glass Fermentation Airlocks of 2025

Mohammed Clark Avatar
Mohammed Clark
Last Updated: 4 Feb 2025

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Glass Fermentation Airlocks are a useful addition to any home fermentation setup. These airlocks allow gases to escape during the fermentation process while preventing oxygen and other contaminants from entering the fermenting vessel. Made of durable glass, these airlocks are easy to clean and reuse. They come in various sizes to fit different types of fermenting vessels and are a great way to ensure that your fermented foods and drinks are safe and flavourful. The Glass Fermentation Airlocks are highly recommended for anyone who is serious about home fermentation.

At a Glance: Our Top Picks

2 x Glass Airlock Bubbler for Home Brewing Cover #TOP 1
2 x Glass Airlock Bubbler for Home Brewing
ftb score rating icon 9.9
DIAH Do It At Home Fermentation Set Cover #TOP 2
DIAH Do It At Home Fermentation Set
ftb score rating icon 9.8
DIAH DO IT AT HOME Fermentation Airlock Set Cover #TOP 3
DIAH DO IT AT HOME Fermentation Airlock Set
ftb score rating icon 9.6

Top 10 Glass Fermentation Airlocks

#TOP 1

2 x Glass Airlock Bubbler for Home Brewing

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2 x Glass Airlock Bubbler for Home Brewing Cover
2 x Glass Airlock Bubbler for Home Brew Wine, Beer, Cider, Spirit, Mash Making, Home Brewing

The Agritrade AK Airlock Bubbler is perfect for anyone interested in home brewing. This product includes two glass airlock bubblers, allowing you to ferment various beverages such as wine, beer, cider, spirits, and mash. Using this airlock helps to prevent contamination while allowing carbon dioxide to escape during fermentation. It is designed specifically for home brewing, making it an essential tool for achieving high-quality results in your alcoholic creations. With this convenient device, you can enjoy the brewing process with ease and confidence.

What We Like
Easy to use
Prevents contamination
Suitable for various beverages
Durable glass material
Includes two bubblers

DIAH Do It At Home Fermentation Set

DIAH Do It At Home Fermentation Set Cover
DIAH DO IT AT HOME DIAH DO IT AT HOME Fermentation Airlock and Bored Bung Cork Stopper for Glass Demijohn Beer Wine Making 6 x Airlock [2-Chambers] with 6 Bored Bungs

The DIAH Fermentation Airlocks are essential for anyone looking to brew their own beer, wine, or cider at home. This set includes six fermentation airlocks and six bored bungs, designed to fit a variety of glass demijohns. The airlocks allow carbon dioxide to escape while preventing outside air from contaminating your brew, ensuring a clean fermentation process. The attached rubber bungs are safe and versatile, making them suitable for different fermentation vessels. With this product, you can enjoy a hassle-free brewing experience.

What We Like
Includes six airlocks and bungs
Prevents contamination during fermentation
Allows gas escape safely
Fits various fermentation vessels
Ideal for home brewing

DIAH DO IT AT HOME Fermentation Airlock Set

6 x Airlocks + Bungs
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DIAH DO IT AT HOME Fermentation Airlock Set Cover
DIAH DO IT AT HOME Fermentation Airlock and Bored Bung Cork Stopper for Glass Demijohn Beer Wine Making (6 x Airlocks [6-Bubble Chambers] + Bungs)

The DIAH Fermentation Airlock is perfect for home-brewing beer, wine, and cider. With its six bubble chambers, it ensures proper fermentation by allowing gases to escape while preventing contamination. This environmentally friendly product is made from non-toxic materials, offering peace of mind as you create your beverages. Additionally, being made in Italy, it reflects quality craftsmanship. Using this airlock set will enhance your brewing experience, making it easier and safer to produce your favourite drinks at home.

What We Like
Ideal for home brewing
Non-toxic and safe materials
Quality Italian craftsmanship
Prevents contamination
Easy to use
#TOP 4

Almost Off Grid Airlocks and Bungs Set

Almost Off Grid Airlocks and Bungs Set Cover
Almost Off Grid 5 x Bubbler Airlocks and 5 x Bored Rubber Bungs for Glass Demijohns, Homebrewing, Beer, Wine & Cider Making, Fermenting

The Almost Off Grid Airlocks are designed to enhance your homebrewing experience. Each pack contains five durable, clear plastic airlocks that come with a dust cap, ensuring your brew remains uncontaminated. The set also includes five bored rubber bungs, each with a hole for easy airlock fitting. These standard-sized, reusable components provide convenience, allowing you to ferment beer, wine, and cider without worries. With this product, you can focus on perfecting your recipes while maintaining optimal fermentation conditions.

What We Like
Durable plastic construction
Includes dust caps
Standard size and reusable
Easy to fit airlocks
Ideal for various fermentations
#TOP 5

2 Pack High Quality Airlocks and Rubber Bungs

2 Pack High Quality Airlocks and Rubber Bungs Cover
2 Pack Airlocks and Bored Rubber Bungs

The Home Brew Airlocks come in a convenient pack containing two bored rubber bungs and two bubbler airlocks, perfect for home brewing enthusiasts. The standard-sized, reusable rubber bungs are designed specifically for glass demi-johns, ensuring a snug fit that accommodates the airlock. By simply adding water to the airlock, you can easily monitor the fermentation process of your beer or wine through visible bubbles. This feature not only provides peace of mind but also allows you to enjoy the brewing experience without constant checking.

What We Like
Reusable rubber bungs
Easy fermentation monitoring
Fits standard demi-johns
Convenient 2-pack
#TOP 6

Almost Off Grid Bored Rubber Bungs for Fermentation

Almost Off Grid Bored Rubber Bungs for Fermentation Cover
Almost Off Grid 3 x Bored Rubber Bungs for Glass demijohns for Making Wine, Brewing Beer, Fermenting Cider, Homebrewing Mead

The Almost Off Grid Bungs are designed specifically for fermentation processes like wine making, beer brewing, and cider fermenting. Each pack includes three rubber bungs that feature a bored hole, allowing you to easily fit a standard airlock. This setup ensures a safe fermentation environment by allowing gases to escape while preventing contamination. Additionally, these bungs are reusable and fit standard-sized demijohns, adding convenience to your homebrewing experience.

What We Like
Reusable and durable
Fits standard-sized demijohns
Compatible with standard airlocks
Easy to use for fermentation
#TOP 7

Almost Off Grid Bubbler Airlock and Bung Set

Almost Off Grid Bubbler Airlock and Bung Set Cover
Almost Off Grid 2x Bubbler Airlock and 2x Bored Rubber Bung to fit 1 gallon 6 bottle glass demijohns

The Almost Off Grid Airlock Set is designed to fit standard 1 gallon, 4.5 litre, and 6 bottle glass demijohns, ensuring versatility for your homebrewing needs. With loose fitting red caps, the bubbler airlocks effectively keep dust at bay, providing a clean environment for fermentation. You simply need to add water to the airlock and securely press it into the rubber bung, which is also easy to fit into the demijohn neck. This straightforward process allows you to focus on the exciting part—waiting for fermentation to begin!

What We Like
Fits standard demijohns
Dust protection with caps
Easy to install
Encourages fermentation
#TOP 8

Almost Off Grid Bubbler Airlocks and Rubber Bungs

Almost Off Grid Bubbler Airlocks and Rubber Bungs Cover
Almost Off Grid 4 x Bubbler Airlocks and 4 x Bored Rubber Bungs for Glass Demijohns, Homebrewing, Winemaking, Mead Making, Beer Making, Cider Making, Fermenting

The Almost Off Grid Airlocks are designed for homebrewing enthusiasts. Each pack includes four durable, clear plastic airlocks that come with a dust cap to keep them clean. The set also features four bored rubber bungs, specifically designed with a hole for airlock fitting. This standard-sized, reusable design ensures you can use them multiple times, making your fermentation process smoother and more efficient. With these airlocks, you'll find it easier to manage fermentation for wine, beer, cider, and mead.

What We Like
Durable plastic construction
Includes dust caps
Reusable design
Standard size fits most
Convenient for various fermentations
#TOP 9

Artcome 5-Pack Glass Weights with Tongs and Brush

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5 Pack
Artcome 5-Pack Glass Weights with Tongs and Brush Cover
Artcome 5-Pack Glass Fermentation Weights with Easy Grip Handle and Unique Texture Design for Large Wide Mouth Mason Jars

The Artcome Glass Fermentation Weights come as a complete set, including five jar weights, silicone tongs, a mason jar cleaning brush, and a recipe book. Made from high-quality, corrosion-resistant materials, these durable weights ensure your homemade ferments, like sauerkraut and kimchi, stay submerged. Each weight is adequately sized and heavy enough to provide the necessary pressure during fermentation. This thoughtful design makes it easy for you to enjoy nutritious, homemade pickles and more, enhancing your culinary experiences.

What We Like
Complete set of fermentation tools
Durable, high-quality glass
Perfect size for various ferments
Easy to use with tongs
Includes recipe book

Brewing Mate Demijohn Airlock and Bung Set

Brewing Mate
BM-04
Brewing Mate Demijohn Airlock and Bung Set Cover
Brewing Mate 2 x Demijohn Airlock and Bung Set, Bubbler Air Lock for Home Brewing, Essential Equipment for Wine Making and Cider Making

The Brewing Mate Airlock Set is essential for home brewing enthusiasts. This set includes two durable plastic airlocks, designed to withstand heavy use and prevent breakages. The silicon bungs offer a tighter seal compared to rubber, keeping airborne bacteria away from your wine, cider, or mead. Additionally, the airlocks allow excess carbon dioxide to escape, ensuring optimal fermentation conditions. This means you can enjoy perfect results every time you brew.

What We Like
Durable plastic construction
Tighter seal with silicon bungs
Prevents airborne bacteria
Allows gas escape
Buying Guide Image

Frequently Asked Questions (FAQs)

1. How do fermentation airlocks work?

Using the Fermentation Airlock is Easy! The water in the airlock acts as a barrier for the air getting into to fermentation vessel. When the CO2 escapes through the airlock it will bubble through the water. ... That also means that air is getting into your fermentation, preventing the anaerobic atmosphere.

2. Do you need an airlock for fermentation?

Can you ferment without an airlock? While airlocks are certainly super helpful, they aren't required. As long as you have a safe way to let the CO2 escape while also preventing excess oxygen from entering then you'll be good to go.

3. Can I remove airlock during fermentation?

Use a no rinse sanitizer like Star San, or vodka, in the air lock rather than water if it is a mold problem that requires cleaning. flars: Cover the carboy mouth with sanitized aluminum foil when you remove the air lock and bung. Keep floaties and flying things in the air from dropping in.

4. What is an airlock for fermentation?

A fermentation lock or airlock is a device used in beer brewing and wine making that allows carbon dioxide released during fermentation to escape the fermenter, while not allowing air to enter the fermenter, thus avoiding oxidation. There are two main designs for the fermentation lock.

Editor's Notes

During our glass fermentation airlock research, we found 118 glass fermentation airlock products and shortlisted 10 quality products. We collected and analyzed 10,401 customer reviews through our big data system to write the glass fermentation airlocks list. We found that most customers choose glass fermentation airlocks with an average price of £7.92.

The glass fermentation airlocks are available for purchase. We have researched hundreds of brands and picked the top brands of glass fermentation airlocks, including Agritrade AK, DIAH DO IT AT HOME, Almost Off Grid, Home Brew Online, Artcome. The seller of top 1 product has received honest feedback from 241 consumers with an average rating of 4.6.

Written by
Mohammed Clark Avatar

Mohammed Clark is an architect and a contractor. His architectural skills are not limited to designing the plan for structures alone, but it extends to aesthetics and home décor. Before establishing his firm, he worked under a construction firm for eight years. Mohammed has gathered enough experience from his time practicing as a professional architect and now has vast knowledge in home designs and aesthetics.