

Depending on the method, between two and five percent of output surplus yeast / tank bottoms are formed during fermentation and storage in the production of beer. The beer content of this yeast is between 40 and 90 percent – a considerable quantity which has to be recovered in economical process management.
The recovery of this valuable beer which, with suitable process management, can be fed back into production without any loss in quality, demonstrates the economic dimension achieved by the use of decanters and separators from GEA Westfalia Separator.

Recovery of beer from sediment
Separators with the Westfalia Separator® hydrostop system achieve optimum yields and good beer quality in all the required areas of performance in a single-stage process.
If feed concentration for beer recovery rises to above around ten percent dry substance, decanters with a hydrohermetic seal are recommended.
Advantages of these decanters:
If there are special clarification requirements, the decanters can be supplemented by small polishing separators in a 2-stage process. Over 90 percent of the beer contained in the yeast can be recovered in this way. As a side effect, a higher sale price can be achieved for the concentrated yeast.
All things considered, decanters and separators from GEA Westfalia Separator reduce wasted beer and the quantity of waste water produced by breweries, capacity is increased without the use of extra raw materials and top-quality beer is recovered.