Preservation of coffee powder

Of course, it doesn't matter if the coffee powder is used when it's fresh, but it doesn't make sense if you sacrifice the freshness and aroma of the coffee for convenience. There is a big difference in the rate at which the quality of coffee powder and coffee beans deteriorate.

The difference between the two results from the difference in surface area. After the coffee beans become powdered, the surface area expands hundreds of times, the larger the surface area, the greater the range of contact with space, so that the range of oxidation is larger. After roasting, the coffee beans can be preserved at room temperature for two weeks. For long-term preservation, you can keep them in the refrigerator. Divide the coffee beans into small bags and refrigerate them for several months. In addition, raw beans should be placed in highly sealed cans and packed in thick paper bags to avoid the problem of high temperature and humidity, and can also be preserved at room temperature in summer.

As for the preservation of coffee powder, the best way is to cook and grind the coffee powder yourself. If you ask the merchant to grind the powder, you can buy a small amount at a time and use it within seven days, otherwise the taste of the coffee powder will change. After each use of coffee powder, use a sealed can or sealing stick to seal the coffee powder and store it in a low temperature and dry place.