What should I pay attention to when cleaning the fermenter?

1. The fermentation process will produce a large number of proteins, hops resin, polysaccharides, yeast and other organic matter and calcium oxalate, sulfate and other inorganic matter, after the fermentation tank emptied, organic matter and inorganic matter dirt attached to the tank wall, yellow brown.When the amount of tartar is large, the surface appears white, just like the skin of saline-alkali land, and inorganic and organic matter are interwoven together.

When cleaning, the use of caustic soda, only to remove organic matter has a role, the cleaning temperature reaches more than 80℃, there will be a better cleaning effect.

When cleaning, a single nitric acid is used for cleaning, but it has a certain effect on inorganic substances, and almost no effect on organic substances.The fouling on the wall of fermentation tank is a mixture of inorganic and organic matter, so it is difficult to clean with a single cleaning agent.As a result, some breweries carry out a thorough cleaning of their fermenter once a year.

2. The anticorrosive layer of T541 on the wall of the fermentation tank was partially damaged. After repair, the surface finish decreased significantly, resulting in difficulty in cleaning the dirt on the wall of the fermentation tank.

3. The wear or clogging of the tank washer or the washing ball leads to incomplete cleaning of part of the fermenter and large accumulation of dirt.