How do you make decaf? How is decaf made? The treatment of decaf coffee

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At present, the manufacturing methods of decaf coffee beans are as follows:

1. Direct contact method: use chemical solvents such as dichloromethane (methylene chloride) and ethyl acetate (ethyl acetate) to dissolve caffeine in coffee beans.

Such as Germany's EA (ethyl acetate) washing method: founded by Dr. Erich Scheele in 1931, it has many patents in the field of caffeine treatment technology. At present, caffeine is extracted by Coffein Compagnie's unique Water-EA treatment, followed by polishing and cup quality control procedures.

two。 Swiss washing method: soak the raw beans, dilute the caffeine, filter the caffeine with activated carbon, and then soak the beans. But this method will result in the loss of the original flavor of coffee beans, there will be too much coke and smoky taste.

3. Carbon dioxide extraction: liquid carbon dioxide is used to dissolve caffeine in coffee beans, but this method needs to be manufactured in a special environment of 200 murmur300 times atmospheric pressure, which is expensive, and very few coffee beans are in circulation.

4. Genetic engineering: the University of Hawaii is still experimenting with ways to sell coffee trees to "forget to make" caffeine.

Decaffeinated coffee or decaf coffee. After the coffee beans are harvested, they are sent to the "pharmaceutical factory" to wash out the caffeine. Don't doubt it. That's what it is. Because some medications need to be made with caffeine. Pharmaceutical companies use this as a source of caffeine.

After washing out the caffeine in the coffee beans (chemically, not normally) in the pharmaceutical factory, the caffeine in the beans is dried and roasted to become decaf or decaffeinated coffee.

The front street hand flushing and cooking suggestions:

Fuji 3.5 V60 filter cup 90 ℃ water temperature 1:15, total time two minutes.