One minute to teach you how to choose your own coffee beans.

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If you want to taste a delicious cup of coffee, you must first choose fresh coffee beans. In a dazzling array of coffee shops, how to choose good beans?

The coffee beans purchased on the market are all brown in color, but in fact, the color of raw coffee beans is turquoise, and the preservation time of raw coffee beans is relatively long, but raw coffee beans cannot be ground into coffee powder and need to be roasted to show the unique aroma of coffee.

However, during coffee roasting, the tannic acid contained in coffee will also evaporate into the air, resulting in the gradual loss of coffee flavor over time, and the finer the degree of grinding of coffee beans, the faster the rate of coffee flavor volatilization. According to the general storage conditions, unless the oxygen is isolated and kept in a frozen state, the loss of flavor can be completely inhibited. Therefore, if you want to taste coffee at its best, the most important thing is to shorten the time from roasting to extracting the essence of coffee, and how to shorten the time of contact with the air.

So how to buy coffee beans that have just been roasted? If you are not afraid of trouble, you can buy your own coffee and raw beans and bake them at home. But if you want to bake yourself and worry about the lack of technology to bake high-quality coffee beans, you must buy roasted coffee beans on the market. So if you want to taste a good cup of coffee, you must find a shop that sells freshly baked beans. When buying coffee beans, you should take the shop where many customers visit as the first choice. In addition, if you want to tell whether the coffee beans sold by the store are good or bad, you can observe them from a few points:

Whether the glass window containing coffee beans is directly exposed to the sun.

Whether the air in the store is too hot or wet.

Whether the glass window is soiled by coffee bean grease, shell shavings, etc.

Whether the overall storefront is clean and bright.