The most popular airlock. Filling the airlock with a little water makes it act as a siphon; the water closes the beer or wine off from the outside air. However it allows the carbon dioxide formed during fermentation to escape.
The most popular airlock. Protects against flies, oxidation and contamination. Suitable for containers in the range of 1-50 l. Fits a 9 mm hole.
What does an airlock do?
Filling the airlock with a little water makes it act as a siphon; the water closes the beer or wine off from the outside air; hence preventing outside bacteria from entering. However it allows the carbon dioxide formed during fermentation to escape through the airlock because of the excess pressure.
Twin-bubble airlocks are the cheapest, but these are harder to clean than the cylindrical models. With volumes of 50 l or more, the use of cylindrical airlocks is essential for the increased flow of carbon dioxide to be processed. The water in the airlock evaporates; regularly checking and refilling is necessary. The airlock can also be filled with a disinfecting solution instead of ordinary water.
Dimensions (incl. Packaging)
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