Which is better, Fine Coffee Powder or medium coarse Coffee Powder-- an introduction to the difference between Grinding thickness Diagram
Which is better, Fine Coffee Powder or medium coarse Coffee Powder-- an introduction to the difference between Grinding thickness Diagram
Generally speaking, a good grinding method should include the following four basic principles:
1. The degree of grinding suitable for cooking method should be selected.
two。 The temperature produced during grinding is lower.
3. The powder should be uniform after grinding.
4. Grind before cooking
According to the European Fine Coffee Association (SCAE-Speciality Coffee Association of Europe), the rough grinding of the French filter pot indicates that each bean is crushed into 100,300 particles, each about 0.7mm in diameter. In the medium rough grinding of the electric filter pot, each bean is ground into 500 grains of 800 particles, with a diameter of about 0.5 mm. Moderately ground by hand and siphon, each bean is ground into 1000 to 3000 particles with a diameter of about 0.35. The fine grinding of espresso in which each bean is ground into 3500 particles with a diameter of about 0.05mm. Turkish coffee is ground into a flour-like ultra-fine powder, and each bean is ground into 15000mm 35000 particles.
When grinding beans, the size of the powder depends on the way it is cooked. Grinding coffee powder with the right thickness is very important for making a good cup of coffee, because the extraction of water-soluble substances in coffee powder has its ideal time, if the powder is very fine and cooked for a long time, resulting in excessive extraction, the coffee may be very bitter and lose its aroma. On the other hand, if the powder is coarse and cooked too fast, resulting in insufficient extraction, the coffee will be tasteless because it is too late to dissolve the water-soluble substance in the powder. The standard of grinding amount is 7g ±0.8g when using conventional bean grinding pot each time. The main requirements for thickness are as follows: G ≥ 0.711mm 50% ≤ 0.711 ≤ g ≤ 0.355 mm,30%;g ≤ 0.355 mm,20%. At present, EIGHTO CLOCIC beans are used in the United States and TCHIBO is used as the standard bean in Europe to design the grinding capacity and fineness. In the detection of the thickness of coffee beans, we can directly use the circular powder sieve to determine, in those large coffee bean processing plants, but also use the magnetic metal tester to determine and analyze the content of magnetic metals in coffee beans.
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