Airlocks, Bungs & Demijohns

Airlocks, Bungs & Demijohns covers bubbler and handy airlocks, rubber and cork bungs, grommets, and glass and PET demijohns in 4.5 and 5 litre sizes, plus demijohn caps, corks and a swing lid. They are the basics for small-batch wine, cider and mead.

Buying guide & FAQs

A bored bung holds an airlock in a demijohn neck. See country wine kits for something to brew.

Frequently Asked Questions
What size bung fits a demijohn?

A standard 1 gallon demijohn takes a 1 gallon size bung. Choose bored if you are fitting an airlock.

Glass or PET demijohn?

Glass is traditional and easy to clean. PET is lighter and will not shatter.

How does an airlock work?

It lets fermentation gas escape while keeping air and insects out.

Airlocks, Bungs & Demijohns