Why is the coarse ground coffee powder suitable for trickling filter-the common grinding thickness diagram of coffee powder

Why is the coarse ground coffee powder suitable for trickling filter-the common grinding thickness diagram of coffee powder

(1) reduce the heat of research. Grinding heat will cause the aroma of coffee to dissipate early.

(2) the particle size is uniform. Uneven particle size will lead to uncontrollable brewing time.

For more than 100 years, the design of the hand-operated bean grinder has hardly changed, and even the latest models tend to be classical and elegant. This kind of bean grinder needs to rotate the rocker by hand, turn the iron sharpening knife inside, crush the coffee beans into a fine powder and drop them in the box below. Strictly speaking, the internal sharpening knife is not a knife, because it does not have a sharp blade or sawtooth, but a tapered grinding iron with an angle. It grinds the coffee beans by rolling, which is similar to the ancient mortar and pestle, and can best retain the aroma of the coffee.

Before the invention of the bean grinder, people used stone pestles and bowls to grind coffee beans. A doctor abroad once experimented with this ancient tool and compared it with a modern bean grinder. It is said that the coffee powder made from pestles and stone bowls is the most mellow.

The matching equation of the size of VS particles in the way of cooking

* rough grinding: the size is as big as coarse sugar, suitable for filter coffee.

* medium grinding: gravel-shaped, the size is between coarse sugar and granulated sugar, suitable for trickling (filter paper dripping) cooking.

* Fine grinding: size as fine granulated sugar, suitable for distilled coffee pot, electric coffee pot, mocha pot.

* very fine grinding: the size is between salt and flour, suitable for Espresso, Turkish coffee, because household grinders can not grind this texture, generally must buy ready-made grinding powder, so if you want to enjoy Espresso at home, it is best to drink a large amount of fresh coffee.

There are many other factors that affect the degree of grinding, including the roasting degree of coffee beans (although coffee beans used by Espresso should use a deeper roasting degree, but sometimes different roasting degrees may be used to roast formula beans for richer taste), blended recipes, and so on. All of the above are the most common and can be mastered by baristas. The previous sections are all about the adjustment of the basic factors in the production process in order to meet that taste standard on the premise of understanding the good taste of Espresso (see the taste of Espresso). There are many places in the world of Espresso that we don't fully understand, and we would like to explore this wonderful world of coffee with you.

Drip filter coffee is usually made with a Hong Kong-style drip filter or an American-style drip filter. Espresso is made with a fully automatic coffee machine or a professional semi-automatic coffee machine with a pressure of 15-20 Pa. Coffee is covered with coffee essence.