The name of coffee capsule is completely translated from the English name. The English meaning of capsule is capsule. Although it is a drink, it has a name like a medicine. However, the name does vividly reflect the characteristics of coffee capsules, which, like medicinal capsules, also contain powdered substances in the colloidal packaging. The advantage of coffee capsules is that because the capsule wall texture is relatively hard, it can maintain the prototype well at high temperature, so high-pressure water vapor can be injected into the capsule, so that the coffee can be completely precipitated under the action of pressure. Strong espresso, which can better ensure the aroma of the coffee. The main brands of coffee capsules are: Nespresso from Nestle, TASSIMO from JDE, K-cup, Oro from Italy (Owo, Lavazza, Monodor, ecaffe from Gaggia and Allcream from Korea), etc.