In terms of school management, coffee machines are not suitable for use. Many school buildings have restrictions. Don't confiscate it before drinking coffee. . . For pressure cookers and hand flushes, you only need to take boiled water from the water dispenser. .
Secondly, from the convenience and practicality of use, the pressure cooker can make coffee or tea. Of course, coffee machines and hand brewing are also possible, but not as good as pressure cookers. In terms of cleaning, hand washing is the simplest, followed by pressing the pot, and dripping coffee machine is the most troublesome.
Thirdly, hand washing is more practical than the other two in terms of extraction practicability.
Almost all beans can be washed by hand, including shallow roasting, medium roasting and deep roasting. . .
However, the baking degree of the pressure cooker is too shallow, the taste is wrong, and it is easy to over-extract if it is too deep.
Forget the drip coffee machine, no matter what beans go in, a cup of bitter water will come out, and the aroma and so on can be basically ignored.