How to distinguish the freshness of coffee beans high-quality coffee technology

The way to check whether the coffee beans are fresh is very simple. Coffee beans are generally roasted in shallow and deep ways, and the states of the two roasted beans are different when they are fresh.

Light roasted coffee beans are lighter in color, and there is no oil on the surface of freshly roasted coffee beans. After being placed for a period of time, oil begins to appear on the surface of coffee beans, and light roasted coffee shows that it is not fresh.

The color of the deep-roasted coffee beans is darker, and there is oil on the surface of the freshly roasted coffee beans. After being placed for a period of time, the oil on the surface of the coffee beans is sucked into the inside of the beans, and there is no oil on the surface of the stale deep-roasted coffee beans.

Smell: fresh coffee beans smell strong fragrance, otherwise tasteless or bad smell.

Look: good coffee beans are complete in shape and full in size. On the contrary, the shape is incomplete.

Pressure: fresh coffee beans are pressed fresh and crisp, and the fragrance wafts out when they crack.

Color: generally dark black coffee beans, the coffee brewed has a bitter taste. Yellow coffee beans, brewed coffee with a sour taste, of course, not exactly like this, according to the variety of beans also vary.

Good coffee beans: neat shape and bright color.

Bad coffee beans: different shapes and incomplete individuals. After cooking, it is light and fragrant, not sweet enough.

Grinding: fresh coffee beans are easy to adhere to the outlet of the grinder because of their strong static electricity and grease.

Brewing: fresh coffee beans are rich in foam when they are brewed, and the foam is layered with coffee grounds.

How to choose coffee beans?

Step 1: choose fresh and delicious beans

It is not advisable to choose a coffee shop or store that will properly store coffee beans in the sun or in dirty containers. The right way is to keep them sealed in a cool place.

Step 2: coffee beans had better be used within a week after baking.

To buy freshly baked fresh beans, the principle of buying in small quantities is the best policy. Otherwise, if you buy most of them at one time, you will lose the original flavor if you put it for a long time. If calculated in grams, 250 grams at a time is a regular and affordable quantity.

Step 3: preserve the coffee beans properly so as not to lose their flavor.

The shelf life of baked beans can be kept for about 2-3 weeks at room temperature, but keep them out of contact with air as much as possible and in an airtight container. If it is more than 3 weeks, it is best to keep it in the refrigerator. Not only can the quality decline at less than half the usual rate, but if you can guarantee that you can drink delicious coffee every time, but you should pay attention to the fact that you have to wait until the coffee comes out at room temperature before opening the sealed jar, otherwise it is more likely to absorb water and deteriorate because of the temperature difference.