Beer filtration

The Brewing Process

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The brewing process



A typical brewing process begins with water being introduced upstream of the mash tank, and finishes when the flavoursome and beloved beverage is bottled, canned or kegged. Within this process, beer is filtered to help create the clarity and consistency that beer drinkers associate with a quality brew. Filtration in breweries tends to get successively tighter at each stage of the process in order to remove larger particles such as yeast and sediment; through to achieving microbiological stability in order to maximise shelf life.
Filtration is often overlooked in smaller breweries, however correct filtration, correct filtration can ensure that a consistently stable beer is produced every time. For more information please click here.

For information on how 3M filtration can help contract packagers deliver consistent, long-lasting beverages please click here.
Breweries also utilise Gas Management systems wherever water is used in the process, with the scope to reduce potentially unfavourable levels of dissolved oxygen. Much like microbiological contaminants, dissolved oxygen can shorten the shelf life and accelerate the spoilage of the final product.

  • Beer Process Map
Final filtration

Microfiltration is the premier method of achieving microbiological stability void of chemicals and heat.

Final filtration



At this point in a high-gravity brewing process, the brewer must add deoxygenated water to dilute the high-alcohol beer to a typical strength.


Trap filtration

Trap filters reduce extraneous diatomaceous earth (D.E.) fines and yeast, also serving as protection from D.E. filter malfunction.

Trap filtration


Water pre-treatment

3M provides quality filtration for sanitising, blending and dilution water, and gas management solutions to greatly reduce potentially unfavourable O₂ levels.

Water pre-treatment


Clarification polishes the beer removing unwanted haze and yeast without compromising the taste.


Ask a 3M Expert

Contact us if you need product, technical or application advice about how our products can help improve efficiency and clarity, whilst lowering long-term filtration costs in your brewing process. 3M has a global support network of market focused scientists and engineers that excel in assisting collaborative efforts between our customers and 3M.