Wine Fermentation Air Bulb (Stock Footage)

Wine Fermentation Air Bulb (Stock Footage)

Close up with a fermentation lock, in the old cellar. A popular fermentation lock that mounts on top of the fermentation vessel is the three-piece fermentation lock. Other models contain three bulbous chambers allowing for a broader range of pressure equalization. These bulbous fermentation locks were generally made of hand blown glass and are nowadays often made of clear plastic.
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