Basic knowledge of standard high-quality coffee

1. High-quality raw beans without defective beans (raw beans with few defective beans such as fermented beans and moldy beans, but not high-priced beans)

two。 Freshly roasted coffee (coffee is best served within two weeks after roasting, preserved as beans and ground before brewing)

3. Freshly ground coffee

4. Freshly brewed coffee

The summary is as follows: the so-called good coffee quality coffee can be defined as "high-quality raw beans remove defective beans, roast properly and extract correctly when fresh". Good coffee is not necessarily good coffee, but bad coffee must be bad coffee.

In the definition of high-quality coffee, it is not difficult to see that the first flawless bean is the top priority of the whole link. What is defective bean?