Diatomaceous earth (DE), is a filtration media composed of microscopic diatoms silica structures millions of years old. DE is used in the beer industry as an extremely effective economical filtration media to facilitate liquid-solid separating. DE’s uniquely strong cylindrical shape, high pore volume and low resistance to flow make it the go-to filter medium.
Application: Two-step operation; first added as a protective layer (pre-coat), and then to maintain porosity (body-feed in pressure filters).
Packaging: 50 lb. bag & 1000 kg super sack
Chemically inert complex filter aids which are used in the formation of precoats for continuous dosing filtrations. Fiber Floc is specifically formulated to contain highly purified alpha cellulose and cotton fibers (zeta-potential) in addition to perlite. Fiber Floc 10 is recommended for primary filtration and Fiber Floc 30 is recommended for polish filtration.
Application: Usually added as the initial pre-coat then followed by either DE or Perlite.
Packaging: 35 lb. bag.
Perlite is a lightweight expanded bubble structures from volcanic glass that are milled and classified into powders that are used in both pressure and vacuum filtration equipment. Perlite filter aids are inert and will impart no taste or odor into wine, and are virtually insoluble in mineral and organic acids at all temperatures. Various grades are available, so please contact an ATP rep about your particular need.
Application: Usually added as a filtration aid during filtration or as a pre-coat at the start of the filtration cycle.
Packaging: 25-35 lb. bag depending on grade.