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Crosspure: Regenerable DE-free Filtration for Existing Beer Filters

MBAA TQ doi:10.1094/TQ-48-1-0224-01  |  VIEW ARTICLE

Andrew J. Fratianni. BASF Corp., Florham Park, NJ, U.S.A.

Abstract
Crosspure polymer, developed by BASF, is a new filter aid that is used for the simultaneous filtration and stabilization of beer. Crosspure is an alternative to diatomaceous earth (DE) or membrane filtration and has the ability to stabilize beer through the removal of polyphenols. Unlike diatomaceous earth, and other single-use stabilization aids, Crosspure polymer is made to be regenerated and used repeatedly, which helps to significantly reduce storage, handling, and disposal costs normally associated with single-use filter aids. In addition, Crosspure polymer can also be used on existing diatomaceous earth filter lines. Minor modification of the filter line is required to use this environmentally sustainable product. The product is cost-effective and has the additional benefit of being a consistent, synthesized product with a virtually zero metal uptake.

Keywords: Crosspure, diatomaceous earth, filtration, filter aid, stabilization 

S�ntesis
El pol�mero �Crosspure� desarrollado por la BASF es un nuevo adyuvante de la filtraci�n para la simult�nea filtraci�n y estabilizaci�n de cerveza. �Crosspure� es un adyuvante alterno a la tierra diatom�cea y a la filtraci�n por membranas, estabilizando la cerveza mediante la remoci�n de polifenoles. A diferencia de la tierra diatom�cea y otros adyuvantes de un solo uso, el pol�mero Crosspure puede ser regenerado y utilizado repetidas veces, lo que reduce significativamente el manejo, almacenaje y costo de disponer del adyuvante usado. El pol�mero Crosspure, un producto sustentable ecol�gicamente, puede ser utilizado en filtros existentes para tierra diatom�cea, con una peque�a modificaci�n en la tuber�a. El producto reduce los costos, con la ventaja adicional de ser un producto sint�tico consistente con un aporte despreciable de metales al producto.

Palabras claves: adyuvante de filtraci�n, Crosspure, estabilizaci�n, filtraci�n, tierra diatom�cea

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