Bubbler Airlock

Bubbler Airlock – Essential for Home Brewing and Winemaking

A bubbler airlock is a must-have tool for any home brewer or winemaker. This S-shaped fermentation bubbler airlock lets carbon dioxide escape during fermentation while keeping oxygen, bacteria, and pests out. It’s a simple yet effective way to protect your brew and ensure a clean, contamination-free fermentation.

How to use a bubbler airlock:

Just fill the airlock halfway with clean water or sanitiser, insert it into a rubber bung or grommet on your fermenter, and you’re good to go. As fermentation begins, you’ll see bubbles escaping through the water, showing that the process is underway.

Whether you’re making beer or wine, a wine bubbler airlock is ideal for monitoring fermentation progress. The bubbling action provides a visual cue that your yeast is working and your brew is safely sealed.

Perfect for:

• Beer, cider, and wine fermentation

• Glass or plastic fermenters with standard-sized openings

• Brewers who want a reliable and easy-to-clean solution

Enjoy hassle-free brewing and better results with a classic, reusable bubbler airlock.

Fun facts about the bubbler airlock:

Fermentation Locks go way back.

The concept of airlocks in fermentation dates back centuries — even ancient Egyptians and Mesopotamians knew to cover their brews to avoid contamination while still letting gases escape. They likely used rudimentary cloths or clay plugs with small vents.

The Bubbler airlock or ‘S’ shaped airlock is a 20th century hero.

The modern S-shaped bubbler airlock as we know it started appearing more widely in the mid-20th century, as home brewing became more popular post-WWII and plastic molding made brewing gear affordable.

A sign of active fermentation

For many brewers, the first “bloop bloop bloop” in the airlock is a magical moment — proof that the yeast is alive and kicking, and fermentation is underway.