Beer brewing water mainly refers to saccharification water and waste washing water, and also includes water for cotton washing, wine filtering, and yeast washing. important influence.

Brewing water should at least meet the following requirements:

(1) It should be colorless and transparent, without peculiar smell or odor.

(2) Carbonate content, that is, carbonate (CO%) content is lower.

(3) pH should be 6.8~7.2, but pH between 6.5~7.5 can generally be used.

(4) Content of several main ions

①Toxic ions, such as arsenic, mercury, cadmium, aluminum and cyanide, are not allowed, or the sanitary standard for drinking water is limited.

②It is better to only contain trace amounts of heavy metal ions, such as copper, iron, zinc, tin, etc., of which the content of iron ions should be less than 0.3mg/L. ③Nitrate and nitrite ions should not exceed 0.1mg/L.

(5) The content of free ammonia and free chlorine is also as low as possible, and should not exceed 0.3mg/L. (6) All kinds of miscellaneous bacteria shall not be polluted, and the sanitary standard of drinking water shall be met.

No matter what kind of water source, such as river, river water (including tap water), deep well water and spring water, etc., as long as it meets or basically meets the above requirements and is properly treated, it can be used as brewing water.