Coffee extraction test mojo- principle of extraction time of hand-brewed coffee

Coffee extraction test mojo- principle of extraction time of hand-brewed coffee

This 18% 22% 30% * (60% 70%), that is, the maximum extractable rate of coffee is 30%. Extraction of 6% 70% is the best flavor of coffee. Why don't I write 18% 22% directly, while around 60% 70% of 30%? when we are brewing a cup of coffee, we can imagine how to extract the best flavor of 60% from the maximum extract of coffee. In other words, 10 g coffee powder can extract up to 30% (3G) of coffee soluble matter, but we expect the best extract 18%-22% (1.8-2.2 g).

In addition, how much hot water these extracts will dissolve in, this is the coffee concentration, the optimum coffee concentration is between 1.0 and 1.5%, less than 1.0% light and tasteless, it is better to drink boiled water, if the coffee concentration is too strong more than 1.5% (for dripping coffee), it's not a good taste. The best Gold Cup concentration of dripping coffee is 1.2%-1.45%. Too light or too strong coffee concentration is not good taste. American flavor: coffee with a relatively light concentration, so the TDS of a cup of American coffee is about 1.2-1.3%. European flavor: generally speaking, the concentration of European coffee is a little stronger, so the TDS of a cup of European coffee is about 1.3 to 1.45%.

1. Coffee contains certain nutrients. Nicotinic acid in coffee contains vitamin B, which is higher in roasted coffee beans. And there are free fatty acids, caffeine, tannic acid and so on.

two。 Coffee is good for the skin. Coffee can promote metabolic function, activate digestive organs, and has a great effect on constipation. Taking a bath with coffee powder is a kind of thermotherapy, which has the effect of losing weight.

3. Coffee has the function of relieving alcohol. Drinking coffee after drinking alcohol will quickly oxidize the acetaldehyde converted from alcohol, decompose it into water and carbon dioxide and discharge it out of the body.

4. Coffee can relieve fatigue. In order to eliminate fatigue, we must supplement nutrition, rest and sleep, and promote metabolic functions, and coffee has these functions.

5. Three cups of coffee a day can prevent gallstones. For caffeinated coffee, it stimulates gallbladder contraction and reduces cholesterol, which is prone to gallstones. The latest Harvard University researchers found that men who drank two to three cups of coffee a day were less than 40% likely to get gallstones.