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What is Divergan®?

Divergan is BASF’s standard excipient for the filtration and stabilization of beer and wine.

BASF produces Divergan by popcorn polymerization of PVP. It is insoluble in water, acids, bases, and organic solvents. Depending on the manufacturing conditions, coarse or fine grain products are obtained, which differ in their application properties. Divergan is available as coarse Divergan RS for beer, and as fine Divergan F for beer and wine.

Overview of the Divergan Types

Product Application Particle size Swelling volume Catechin adsorption
Divergan RS Regenerable Coarse max. 5.5 l/kg min. 40%
Divergan F Single-use Fine max. 6.5 l/kg min. 55%