Wort Filtration Technology in Beer Brewing

Filtration systems are used throughout the brewing process, and most beers sold today are filtered to some extent. At the end of the saccharification process, the excipients have completed the breakdown of their macromolecules. Therefore, wort (a water-soluble extract) and distillers grains (residue, macromolecular proteins, cellulose, fat, etc.) must be separated in the shortest possible time. This separation process is called filtration of the mash.

Wort filtration includes mash filtration and wort cleaning. A wort brewing system includes all the equipment needed for malting, mashing the malt in hot water, straining the wort, boiling the wort with hops, spinning the wort, and cooling the wort before beer fermentation.

1. Overview of wort filtration:

Wort filtration is the process of removing solids from a liquid through a porous medium. Filtration effectiveness depends on particle size and filter media porosity. If the material suspended in the liquid is larger than the pore size, they will remain on the filter media.

2. Wort filtration process and method:

Filter the wort with a filter tank and a filter press, filter the first wort, and filter the washed wort.

3. The goal of wort filtration process:

(1) Obtain high-quality wort

(2) Low solids wort;

(3) The enzymatic oxidation process of wort, the wort absorbs less oxygen or occurs in the whole wort filtration process, the degree is low;

(4) There are fewer harmful substances leached from the wheat husk; and ensure that the wort in the whole pot meets the iodine test qualification; the distiller's grains are thoroughly washed to obtain a high saccharification rate. On the premise of ensuring the quality of filtered wort and thorough cleaning, the filtration time is short and the utilization rate of equipment is improved. From the perspective of environmental protection, there should be no residual water in the washing slag, and the concentration of residual water in the washing slag should reach 1.2%; reduce the cost of wastewater treatment and protect the ecological environment.

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