The yeast in the bottom of beer fermenter, it can be divided into three layers.
The top layer mainly is light yeast cell, combined with dropping foam cover and settlement yeast cell. Some precipitates mix with protein and hop resin, also have some impurity substance. It can used as feed or something.
The middle layer is core yeast, it is combined with strong, high fermentation yeast cell. The amount is about 65%-70%. It need take out indepdendly and used as next yeast recipes. The color is light.
The bottom is weak or dead yeast cell. Combined with particles settlement originally. For example hop resin, solid substance etc.
Edited by Derrick
Sales Manager in Tiantai Company
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