BEER FILTRATION

Innovative and Reliable Solutions

Filtration has been a proven method for thousands of years to improve shelf life, stability and clarity of beer. The filtration step removes undesired constituents from beer for a product of highest value. For brewers it is still the most efficient and reliable way to give beer it’s final touches before handing it over to the consumers.

Filtration to ensure best quality

Ultimately, the choice of clarification method will depend on a variety of factors, including the type of beer being brewed, the desired clarity, and the available equipment and resources. Depth filtration technologies offer highly flexible solutions for a wide range of applications in the brewery. The following information describes typical usage examples in the brewery environment. Variations of these examples or further applications should be considered depending on desired filtration needs and required final product quality.

After conditioning beer is filtered to establish different final product qualities. Coarse filtration will help to maintain a stable natural haze. By the removal of any remaining yeast and precipitated protein and polyphenol haze material, filtration plays a key role to provide a physical-chemical stable product. Sterile filtration ensures microbiological stabilization by eliminating yeasts and bacteria that could negatively impact beer shelf life.

The following filtration steps are common during beer production:

Recommendations for Beer Filtration
	Backwashable filter modules	One-step beer filtration	Trap filtration after adding filter aids
Purpose	Backwashing for more effective regeneration of the filter medium	Beer filtration without pre-treatment	Prevents filter aids or other particles from entering the final product.
Objective	Longer filter life during filtration	Optical clarity and shelf life of up to 3 month	No unwanted particles in the final product
Solution	Filtermodule FIBRADISC PLUS2	FIBRAFIX AF31 with its unique surface	CLAROX PL, the optimized and regenerable filter cartridge
Effect	Elimination of surface blockages Immediate pressure drop Extended filter life	Optical clarity of <2 EBC units Shelf life of approx. 3 months	No particles in the final product Improved regeneration High integrity preserves aroma and flavour
Limitation	Only removes surface deposits (yeast, protein compounds, hops, etc.)	Filter life is highly dependent on sedimentation effects and beer pretreatment (lagering, dry hopping, etc.)	Removes larger particles such as filter airds; no adsorption effects

Filter Sheets and Modules

Note: All filter sheet grades are also available as standard filter modules, backwashable modules, or in special format.

FIBRAFIX® FILTER SHEET	Filtration	RECOMMENDED APPLICATION
AF 11	Coarse filtration	Ideal for pre-filtration during dry hopping or for lightly polishing naturally cloudy beers.
AF 21	Fine filtration	For coarse filtration. Perfect for dark beers, IPAs or naturally cloudy beers.
AF 31	Fine filtration	Polishing filtration for ales or amber beers. Unique filter surface for higher turbidity loads.
AF 41	Fine filtration	Medium clarity and brilliance. Suitable for most beer styles.
AF 71	Fine filtration	For export beers and pilsners. Ideal for clear beer, and where long shelf life is required. The beer is almost yeast-free after filtration.
AF 101	Fine filtration	Complete removal of yeast and significant improvement of microbiological stability.
AF 130	Sterile filtration	Sterile filtration for all types of beer.

 

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