Airlock - 3 Piece

Three-Piece Airlocks – Reliable Fermentation Protection

Three-piece airlocks are an excellent choice for protecting your fermenter from contaminants while allowing CO₂ to safely escape during fermentation.

Easy to Use:
Simply fill the airlock with pre-boiled water, sanitiser solution, or ideally ethanol (like our Super Kill Ethyl Sanitiser), and insert it into the pre-drilled hole or bung on your fermenter. The airlock forms a barrier that allows gases to escape without letting oxygen or airborne microbes in—ensuring a clean, controlled fermentation environment.

Why Choose a 3-Piece Airlock Over S-Type Models?
The KegLand 3-Piece PP (polypropylene) Airlock stands out for its durability and practicality. Unlike S-type airlocks, it’s dishwasher-safe and won’t crack under high heat—making sterilisation easier and more reliable.

Pro Tip:
Filling the airlock with ethanol helps prevent microbial growth in the chamber. If any liquid is accidentally drawn into your fermenter, ethanol is harmless, won’t affect flavour, and may slightly increase your beer’s ABV.

Important Note for Cold Fermentation:
If you're fermenting in a fridge or freezer, regularly check the liquid level in the airlock. To prevent freezing or evaporation, use ethanol or a saltwater solution instead of plain water.