The coffee powder for making coffee is ground, pressed and pressed-the shelf life of freshly ground coffee powder

The coffee powder for making coffee is ground, pressed and pressed-the shelf life of freshly ground coffee powder

Another reason to grind your own coffee powder can also be said to be good, it is a "fresh" problem. We all know that the preservation time of coffee beans should not be too long, in fact, accurately speaking, the preservation time of cooked beans should not be too long. Raw beans can be preserved for quite a while without losing their flavor. So if you have enough patience and curiosity, you can also buy raw beans, , you can better preserve them, and experience the process of roasting coffee beans. Aung, I dug another hole for myself, and then I filled it out slowly. In other words, roasted coffee beans are generally stored in bags with one-way exhaust valves, which can prevent outside air from entering and affect the flavor of coffee beans, and can also discharge carbon dioxide produced by coffee beans. Even so, if it is ground into powder, the flavor of coffee will be lost much faster than coffee beans because of the increase in surface area. It is even said that the best taste period for roasted coffee beans is no more than 7 days, while coffee beans that last more than 15 days can be thrown away. Of course, it doesn't mean that the coffee beans will go bad after 15 days. When I buy roasted coffee beans, I usually buy two varieties at a time and drink them instead, so it takes about a month or so, and the coffee flavor must be losing. It's just that we ordinary people don't feel "bad" so obviously. So it is conceivable that the coffee ground into powder greatly speeds up the oxidation rate and the preservation time is even shorter!

1. Why grind your own coffee powder?

In fact, many shops that sell coffee beans can grind coffee droplets for free, and they may even ask you about the most suitable thickness of the equipment you use. Then why do we have to grind it ourselves? Just to pretend?

The coffee powder we grind will increase the surface area of coffee beans by 1000 times, making the extraction more effective (the process in which water passes through the coffee powder and takes away the substances soluble in water, which is called "extraction"). Different utensils in the extraction, the way and efficiency are different, in order to rush out the best taste, you will need different sizes of coffee powder. If you only use one kind of utensils to make coffee and children's shoes that have just started to drink coffee, you can ask the store to help you grind them first. Wait for you to develop the habit of drinking coffee, and then to understand the thickness of your own utensils, slowly into the pit to grind yourself.

In addition, even if it is the same appliance, everyone's favorite taste will be more or less different. At this time, if the coffee powder ground in the store is not suitable for your own taste, there is no way to change it. If you grind yourself, on the one hand, you can adjust the thickness according to the utensils used each time, and on the other hand, you can try different tastes and find the one that suits you best. Even when I flushed it with my own hands, I tried to adjust the thickness several times.

Article / vulgar adult (author of a brief book)

Original link: http://www.jianshu.com/p/50d6d4faef92

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