Coffee powder thickness standard-Starbucks coffee powder thickness standard
Coffee powder thickness standard-Starbucks coffee powder thickness standard
In addition, before deciding on the grinding degree of coffee beans, baristas will first look at the color and oil production of cooked beans. The lighter the roasted coffee, the more complete and hard the texture is, and the more difficult it is to extract. It is advisable to grind slightly, but not too fine, so as not to highlight the sharp and sour taste. The deeper the roasting degree of coffee, the deeper the damage to the texture, the easier to extract, it is appropriate to grind a little coarsely, deep roasting and grinding too fine will be bitter. Therefore, the degree of grinding of deep-roasted coffee is generally thicker than that of shallow roasted beans.
The thickness can control the bitterness
Roughness is a good way to control bitterness, because the finer the grinding, the higher the extraction rate, the easier it is to extract high molecular weight bitter substances such as chlorogenic acid, quinic acid, caffeine and carbides. On the contrary, if the grinding is too rough, the lower the extraction rate is, the more difficult it is to extract the astringent bitter substance with high molecular weight, but the sweet taste with middle molecular weight may remain in the coffee grounds because of insufficient extraction, which is a waste. Therefore, baristas should pay attention to whether the thickness of the powder is normal every day. Too thick or too fine will cause abnormal extraction and affect the flavor of coffee.
The degree of grinding of all kinds of bubble cooking methods, from coarse to fine, in the following order:
French filter kettle (rough grinding), electric drip pot (medium), hand punch, siphon pot, desktop smart filter cup (medium), mocha pot (medium), espresso (fine), Turkish coffee (very fine).
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.
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Common grinding thickness of coffee powder-thickness of hand-made coffee powder
Coffee powder common grinding thickness map-hand coffee powder thickness its bubble method is more or less the same as filter paper, but the coffee taste is more detailed, it can make the coffee bitter. Sour taste and other characteristics are completely presented, but the inconvenience of flannel filter is in maintenance, cleaning and finishing. When using it for the first time, rinse it with hot water, and then put in the coffee powder or tea dregs
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How long is the best time to use coffee beans after baking?
Coffee beans are roasted. So, is freshly baked coffee the best? Can we make a good cup of coffee from freshly roasted coffee beans? Our opinion is that it is best to wait more than 6 hours for coffee extracted without pressure apparatus (single coffee of origin) (cup test requires 8-12 hours), while for Espresso coffee it takes more than 5 days. The exhaust effect of coffee beans does not begin until 3 hours after baking.
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