Grinding thickness means that each coffee bean is ground into 100-300 particles, with a diameter of about 0.7 mm. The electric drip filter is medium grinding, and each bean is ground to 500-800 mm, with a diameter of about 0.5 mm. Moderate grinding by hand flushing and siphoning Each bean is ground into 1000-3000 particles with a diameter of about 0.35 mm. The fine grinding of espresso, where each bean is ground into 3,500 particles, is about 0.05 mm in diameter. Turkish coffee POTS are ground into flour, about 15,000-35,000 particles per head.
The grinding degree is the most fine, roughly a flour-like powder (200 microns), while the grinding degree of hand punching and siphon will be slightly coarse, with the feeling of sand (600 microns or so), and the grinding of the French press is coarser (850 microns).
1: Turkish powder: If the grinder can reach it, this is the finest coffee powder
2: Fine espresso powder: very fine coffee powder, there is the possibility of caking
3: espresso powder: fine coffee powder, caking may be used in the production of espresso
4: Fine filter powder: between espresso powder and filter powder
5: Filter powder: Coffee powder has the texture of special grade sugar with seasoning, which is very different from the fine powder of the third level, and is often used for hand-made coffee
6: Coarse filter powder: accuracy is similar to sugar
7: Coarse powder: suitable for soaking method, such as French press pot. The accuracy is similar to sea salt debris
8: Very coarse powder: similar in size to rock salt, only suitable for a long time soaking method