
Fermentation Air Locks

by Science Photo Library
Title
Fermentation Air Locks
Artist
Science Photo Library
Medium
Photograph - Photograph
Description
Fermentation air locks. Two forms of air locks used in fermentation equipment, attached to glass bottles (right). Air locks use water to prevent bacteria in the air from travelling into the bottle and contaminating the fermenting beer or wine. They are used instead of corks or stoppers as they still allow the release of gas, which can bubble out through the water. If the gas was unable to escape, the pressure would build up inside the bottle, which would eventually burst.
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May 8th, 2022
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