Coffee knowledge Coffee Grinding and extraction

Coffee grinding and extraction

The ideal time for coffee grinding is to grind it before cooking. Because ground coffee is easy to oxidize and lose its flavor, especially without proper storage, coffee powder is also easy to change flavor, so it is naturally impossible to cook mellow coffee. Before the invention of the bean grinder, people used stone pestles and bowls to grind coffee beans. A doctor 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.

Suitable for fineness grinding-Turkish copper pot (Ibrik, fine powder), mocha pot, espresso machine (very fine grinding).

Suitable for medium grinding-filter paper dripping method, flannel dripping method, air stopper.

Suitable for roughness grinding-water drop coffee machine (extreme roughness grinding), trickling filter pot (extreme roughness grinding)