Coffee powder can be put in the refrigerator. How to keep it is the best way to seal it. How long can it be kept?

If you have to put the coffee in the freezer, be sure to put the coffee in the freezer immediately after buying the coffee. According to the National Coffee Association (National Coffee Association), the shelf life of coffee beans in the freezer can be up to one month. Once you start using it, you have to take the coffee out of the refrigerator and store it in a low-temperature, dry place.

Of course, the storage location of coffee is important, and the choice of bags can not be ignored. Whether you keep the coffee in the freezer for a long time or use it in the cupboard every day, remember to put the coffee in a vacuum bag. Professional baristas at Blue Bottle Cafe also suggest that the bag should be equipped with an one-way vent. One-way vents not only ensure that outside air cannot enter the bag, but also fully discharge carbon dioxide from coffee beans. Coffee releases a certain amount of carbon dioxide after roasting. Only with the full release of carbon dioxide can the taste of coffee reach its extreme. As humidity and oxygen can lead to accelerated deterioration of coffee, it is important to keep the coffee in a sealed bag.

Only by isolating humidity and air can the quality of coffee be guaranteed and the coffee you drink every day will be more delicious.

Although coffee should be stored in cooler places, the refrigerator or freezer will increase the humidity in the coffee bag. Humidity can be said to be one of coffee's biggest enemies. It will speed up the deterioration of the coffee and make the coffee lose its original taste. Another reason why coffee should not be stored in the refrigerator is the instability of temperature. The unstable temperature makes the water easy to condense, which further increases the humidity in the bag. In addition, the daily process of getting in and out of the refrigerator will further increase the fluctuation of temperature and humidity, making the coffee deteriorate faster, making the coffee tasteless. Scott McMartin (Scott McMartin), a member of the Starbucks Green Coffee quality Committee (Starbucks Green Coffee Quality Group), said in an interview with Real Simple magazine: "changes in molecular structure will lead to the loss of oil in coffee beans, which is the source of coffee aroma and taste.

Coffee preservation method:

After the coffee is unpacked in a tin paper bag, roll up the paper bag and, if there is a clip, stick it with a clip. Then put it in an airtight container and store it at room temperature for a week. If you can't finish it within a week, store it in the freezer.

Coffee should be stored in a dry, cool place, not in the refrigerator, so as not to absorb moisture. Coffee beans and ground coffee can be frozen, but the only thing to note is that when you take the coffee out of the freezer, you need to prevent the frozen part from melting and dampening the coffee in the bag. Coffee is better in the refrigerator. But it won't take more than a month.