See under fermentation essay.
Designation for various glass devices that are placed on the sealing hole of the fermentation container and seal it tightly on one side. Other names are fermentation bell, fermentation control top, fermentation tube, fermentation tube, fermentation bung and fermentation seal. This prevents the entry of air (oxygen) and the resulting unwanted oxidation. This is why fermentation carried...
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Roman Horvath MW
Domäne Wachau (Wachau)