Introduction of two kinds of coffee powder mixed extraction coffee extraction method

First, Italian Rapid espresso (Espresso), invented in Italy, extracts 25 milliliters of espresso in 25 seconds at 9 atmospheric pressure and 92 degrees water temperature. This is significantly different from other coffee extraction methods, which can be done under unnatural conditions, reflecting the intervention of science and technology. Espresso Espresso can generally be made by Italian semi-automatic coffee machine and full-automatic coffee machine. A good Espresso requires higher price and quality of coffee machine and bean grinder. Semi-automatic coffee machine is only suitable for commercial production of coffee operators and is not suitable for ordinary families. Because of its convenience and speed, full-automatic coffee machine has been accepted by family enthusiasts a few years ago, and there are many optional models now. Dazzling, but the coffee made by the automatic coffee machine is really not flattering, it can only be called the beverage machine is more appropriate, in addition, the internal structure of the automatic coffee machine, after using for a period of time, the parts that come into contact with the powder are moldy and there is no good way to clean up, which can not be solved. In the past two years, under the impact of hand-made freshly ground coffee, the market has gradually shrunk.

2. Filter drop method

The drip filtration method can make the beans show the original taste directly, and can correspond to various baking degrees. Just the operation process requires a little skill, for example, if the drip filter core, astringent strong coffee, it is necessary to use roughness grinding, so that hot water quickly through the coffee powder, more or less can be adjusted. Shorten the "stuffy steaming" process to make the overall taste lighter, but also can adjust the original taste is too strong, too bitter taste. The trickling filtration method has this kind of variability. The most suitable degree of grinding is moderate grinding. It is inappropriate to be too thick or too thin. Pick up a pinch of coffee powder in your hand, if it feels rough, it is best to press different filtering supplies, so that the water flow is not too fast or too slow, and the dripping water flow is a suitable line. Hot water temperature is about 82-92 ℃, according to different beans, different baking degree fine adjustment, need more practice, find suitable for their own is the right. The aroma of coffee using drip filter is more likely to escape than when extracting commercial coffee. After all, there is no way to be exposed to external air, which may be the only weakness of trickling filtration, so if you want to drink good coffee, you must be freshly ground coffee beans and how much powder you need to grind. In addition, it is easy to highlight some specific flavors when extracting at low temperature, so care must be taken. Compared with low-grade coffee, good individual coffee has no miscellaneous flavor, so it tastes good when it is cold.

Immersion extraction (Steep Extraction) is a more natural and simple way to extract coffee, and the extraction temperature is close to 85-92. It can be subdivided into:

1. Convenient coffee such as hanging ear coffee, capsule coffee machine, etc.

General household disposable products, such as: hanging ear coffee bag, or capsule coffee machine and so on. The author does not have much contact with the capsule coffee machine, but the principle is that the coffee is extracted by the machine after grinding, and this kind of coffee can reach consumers in a short period of time after grinding, so it should be similar to the experience of hanging-ear coffee.

Mainly replace instant coffee, but compared with hand-made freshly ground coffee, it can only be an excessive product. Coffee has also been trial-produced on a small scale online, guaranteed to reach consumers within four days after grinding, and uses high-quality single-product coffee beans, but the effect is really frustrating. basically, most of the aroma is lost in three days, and the fragrance is lost in a week, and the customer experience is really bad. I was also doing a synchronous test and tasting myself, and I really couldn't drink it, so I had to give up. Therefore, hanging-ear coffee can only be suitable for consumers who don't care about the flavor of coffee and have no spare time to grind it.