Espresso produces oil-the practice of espresso and American coffee

Espresso produces oil-the practice of espresso and American coffee

At present, the standard of esp brewing theory is 9 ±1 and 9 ±0.5,9 ±2 respectively. Here in order to facilitate the memory and understanding of the individual is set at 9.

Personally, I am not a pure supporter of conical knives or flat knives. If it is for personal use or does not need a lot of grinding, the calorific value can be ignored. Then I will recommend the flat knife bean grinder, stable, uniform grinding is the premise to ensure quality. If it is a commercial place for grinding a large number of powder, you should choose a cone knife bean grinder with a faster grinding speed and not easy to heat. According to the domestic coffee market, flat Dao is more wise as the mainstream.

Most of the grinding knives are made of high hardness stainless steel. nowadays, some manufacturers offer ceramic or titanium alloy cutterheads, which are not easy to produce high heat, while titanium alloy has more durable properties and can be upgraded according to their own needs.

In the coffee machine hardware that we often talk about, the most common mention is the size of the boiler and the pump (pump). In fact, there are many other things to pay attention to in the coffee machine. The design of different pipes of the material will affect the effect of a cup of coffee. This is also why responsible manufacturers use copper or stainless steel as the main material of the coffee machine. First, copper has good thermal conductivity (to ensure uniform and stable temperature) and ductility, and metal fatigue is not easy to occur even in frequent alternation of cold and heat. Stainless steel is more hygienic and durable. Because stainless steel appeared relatively late, many manufacturers still use traditional copper to make coffee machines. Materials such as plastic and aluminum are completely unreliable, but household machines are commonly used and cheaper.

Some coffee lovers make their own coffee at home. After brewing it at home, the coffee has no coffee fat, and the milk foam has no effect. If the flower drawing is not successful, there will be doubts, such as "Blue Mountain coffee beans themselves cannot produce oil. You can only use Italian coffee beans to make flowers."

In fact, first of all, we use espresso mechanism to make coffee with deep-roasted coffee beans, this kind of coffee bean oil will be more, secondly, coffee beans should be ground very fine, manual can not reach the fine grinding standard, which is conducive to full extraction. It is recommended that you use Italian coffee beans and grind them with a special grinder. The espresso made in this way is more suitable for making fancy coffee.

There are several possibilities for failing to produce grease: 1. The pressure of the coffee machine did not reach enough pressure. two。 Coffee beans are not ground to the required fineness. 3. The filling of coffee powder did not meet the required tightness. 4. There is oil in any kind of coffee beans, and it is not a matter of coffee varieties. But pull flowers should choose deep-baked beans, medium-and shallow-roasted coffee with milk foam will be too light.