Water is an indispensable part of beer fermentation equipment, 90% is water, qualified water quality is the basic element of brewing beer. Water runs through the entire beer brewing process, affecting every stage of brewing. The nature of the water determines the type of beer and also directly affects the quality of the craft beer brewed by the beer equipment. If you want to make beer taste better, you should choose or improve the composition of the water. The higher the standard, the better the quality, the more consumers can rest assured.
How can you tell what kind of water is suitable for brewing beer? What does water do to beer? Next, let's talk about this topic.
Step 1: Appearance
Appearance should be colorless and transparent, no suspended matter and sediment.
Step 2: Taste
Taste should be no salty, bitter, astringent odor, taste fresh at room temperature.
3.pH value
It should be neutral or slightly acidic, and the pH value of neutral pure water is 7; More than 7 is alkaline water, less than 7 is acidic water. The ideal water for brewing beer should have a pH between 5.5 and 5.8. Too high or too low a pH will affect the saccharification and taste of the beer.
Step 4: Hardness
In the production of light-colored beer, the total hardness of water should be below 8; The hardness should not exceed 12, and the temporary hardness is 2 to 5.
5. Organic Matter
The amount of potassium permanganate should be 0 ~ 3mg/L, and more than 10mg/L is seriously polluted water.
Step 6: Calcium
The main ions which affect the water hardness can promote the enzyme activity. And ensure the taste, clarity and stability of the beer.
7. Magnesium
The more content, the harder the water; (More than 50ppm: acidic water, bitter taste; Over 125ppm: Laxative and diuretic)
8. Sulfate
The higher the content, the coarser the water, the more it can highlight the bitterness of the hops.
9. Bicarbonate
Carbonated water is suitable for brewing light beer; The higher the pH, the more it neutralizes the acidity of the roasted malt.
10. Sodium
Add round taste to the beer.
11. Chloride
Highlight the aroma of the beer.
By reading the above text, you can basically understand the direction of the brewing water, and the other ingredients are no longer repeated one by one. In pursuit of the extreme, some brewers use water treatment equipment to make the water pure, and water that completely removes minerals from the water is not suitable for beer brewing, because as mentioned above, minerals play a large role in the taste change of beer and are essential for beer brewing.
The use of ordinary tap water for brewing, such as deep well water, spring water, lake and river surface water, etc., as long as there is no pollution, and the above items are seriously exceeded, basically can be used as beer fermentation equipment.