Boutique coffee common sense what is tannin?
Tannin, one of the main chemical components of coffee beans, accounts for about 7% of the total chemical composition of coffee beans.
After extraction, tannic acid will turn into a yellowish powder and easily dissolve in water. Once heated, it will decompose to produce pyrosylic acid, making the taste of coffee worse.
Because of this, a cup of brewed coffee will lose its taste and taste if it is not drunk immediately, which is why there is a saying that "coffee should be drunk while it is hot".
It is generally believed that the duration of a cup of coffee is 10 minutes. If you want to, you can try whether the taste of the same cup of coffee is the same every minute, and 10 minutes later, the taste of the coffee will be much different from that when it was first brewed.
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Basic knowledge of fine coffee what is a bean grinder?
Coffee grinder refers to the important coffee utensils that turn coffee beans into various kinds of coffee powder, and it is also a necessary appliance in the home of coffee friends. Many friends who are new to coffee are not very clear about how to use the coffee grinder. Let's talk about how to use the coffee grinder. Coffee grinder is divided into: hand coffee grinder and electric coffee grinder. Both kinds of bean grinders have their own unique characteristics.
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Boutique coffee utensils common sense what is a filter cup?
The main difference of filter cup lies in the filter hole at the bottom of the cup. At present, there are mainly four kinds of filter cup: single-hole, double-hole, three-hole filter cup and V-shaped filter cup. The single-hole filter cup was invented by Mrs. Melitta in Germany, commonly known as Melita Cup. The single-hole filter cup is mainly used for medium-deep roasted coffee such as German roasting, while the shallow roasted coffee is easier to plug the filter hole. The three-hole filter cup is not easy to be blocked because of its many filter holes.
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