Abstract: A filter aid for a pre-coat filter, the filter agent comprising regenerated cellulose fibers, and a method for filtering or stabilizing an unfiltered product, including: provision of a pre-coat filter; pre-coating of a filter means of the pre-coat filter with regenerated cellulose fibers acting as a filter aid, in order to form a filter layer and passing of the unfiltered product through the filter layer that has been formed. Also, a filter layer including regenerated cellulose fibers for a plate press, plate-and-frame filter or plate filter for filtering a beverage.

Abstract: A method for filtering beer, wherein the beer to be produced is guided into a filter. For the improvement of the filtering output, the beer to be produced is subjected to a shaking process before being introduced into the filter.

Abstract: The Invention relates to a method for determining the filterability of beer, said method having the following steps: a) taking a wort or beer sample, b) filtering the sample on a plurality of filters of varying pore size, c) determining the size of the particles on the filter surfaces of the filters, d) qualitative analysis of the particles on the filter surfaces and assigning the measured particles to certain substances or groups of substances present in beer or the wort, wherein evidence on the filterability can be obtained from the size of the particles of different substances or groups of substances of individual fractions.

Abstract: A method for filtering beer, wherein the beer to be produced is guided into a filter. For the improvement of the filtering output, the beer to be produced is subjected to a shaking process before being introduced into the filter.