Determine the freshness of coffee beans

Freshness is the life of coffee. To distinguish whether coffee is good or bad, first of all, look at its freshness. There are four steps to determine the freshness of coffee beans: smell, see, peel and test.

The first step is to smell.

Put the coffee beans close to the nose and take a deep smell to see if you can smell the strong aroma. If so, the coffee beans are fresh enough. On the contrary, if the aroma is weak, or if it has begun to appear greasy, it means that it is not fresh at all. No matter how much effort you put into grinding and cooking such coffee beans, it is impossible to make a good cup of coffee.

The second step is to see

If you spread the coffee beans on your hands, you can use your eyes to determine the origin and variety of coffee beans, the shape of the beans and the degree of roasting and roasting.

The third step is to peel.

Take a coffee bean and try to peel it off by hand. if the coffee bean is fresh enough, it should be easy to pull away, and there will be a crisp sound and feeling. If the coffee beans are not fresh, you will find that you have to make a lot of effort to get rid of them. After peeling off the coffee beans, you can also see if the coffee beans are roasted evenly.

The fourth step is to test.

When the fresh coffee is extracted on the espresso machine, the Krima on the coffee is thicker, thicker and fresher, and conversely, it is not fresh.

After the fresh coffee is extracted with a siphon pot, there will be thick colloid on the coffee grounds and many fine small bubbles on the bottom seat, which proves that the coffee is fresh, on the contrary, it is not fresh.