Why does the flavor of coffee dissipate from the five key factors affecting the taste of coffee?

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1. Air:

Putting coffee beans or coffee powder in the air will make the coffee flavor lose quickly. Drinking coffee now is one of the very important concepts. If it has been placed for too long, the aroma will be lost. It is suggested that you can at least buy a hand-held bean grinder and drink fresh coffee beans.

two。 Light

Coffee beans are also sensitive to sunlight, so keep the coffee beans away from the sun as far as possible to prolong the shelf life.

3. Temperature

Do not let the coffee beans in the high temperature environment, the temperature will cause chemical changes in the coffee beans, leading to smell, some friends will put in the kitchen near the gas stove, please move to other places such as storage cabinets to avoid the high temperature environment. Some electric bean grinding machines emphasize low speed, but do not pay attention to bean grinding efficiency. For example, the 400rpm of Kalita nice cut is to reduce the heat energy produced by knife head friction and reduce the temperature too high to make the coffee stale.

4. Damp

Do not store the coffee beans in a wet place. The coffee is packed with sealed strips. Please close the clips at the same time after taking out the coffee beans, so as to avoid the chemical reaction between the moisture in the air and the coffee, resulting in a decline in freshness. Sealed cans can also be used to preserve coffee beans. Do not put coffee in a wet environment as much as possible. Some people will get used to putting coffee in the refrigerator, which is also a bad way. The humidity in the refrigerator and other fruits and vegetables put in the refrigerator will affect the flavor of the coffee beans, resulting in a great decline in the flavor. Unless your coffee beans have passed the best taste period of more than a month, we do not recommend that you store them in the refrigerator. It is not a correct and effective way to keep fresh.

5. time

The biggest enemy of coffee beans is "time". No matter what way you use, you can't stop the loss of coffee fragrance. The principle is that coffee beans begin to emit carbon dioxide after roasting for 6 hours, and at the same time, the aroma of coffee also continues to be discharged, so the correct time to wake up beans is these 4murals for 6 hours, which is the peak time for Aroma when exhaust begins. This interval is not used as a cup test because its Aroma score will soar but for a short time, it is not suitable to be used as a reference for cup test scores, and then it will continue to exhale in large quantities for about 14 days. For foodies, these two weeks are the most charming moment of flavor, and then the exhaust of coffee beans will weaken in the third week and then weaken in the fourth week, and the flavor will gradually decline, so the coffee can not be kept fresh without unpacking. Because the coffee bag must add an one-way outlet valve exhaust, otherwise it may burst, vacuum packaging is not feasible because the same in the exhaust may burst, hang-ear coffee bag will not burst because of the small amount of powder, but you will find that the coffee bean is in the exhaust, the aroma continues to be released, time is definitely the key factor of coffee bean quality, and the family factor can be avoided artificially. But time doesn't stop. It's going on all the time.