The best preservation method of coffee beans using cryopreservation is the best prescription.

Coffee belongs to fresh food, as long as it comes into contact with the air, it is easy to oxidize, so it is often bought good coffee beans, but because of the large amount and can not be drunk, these beans will lose their original roast taste within the preservation limit. Therefore, it is wise to buy the right amount and cook it within the expiration date. If possible, it is best to buy a quantity that can be drunk within a week.

However, if the coffee beans that have been bought cannot be consumed in a short period of time, how can they be preserved in order to maintain their freshness? This is not the case. After roasting coffee beans at room temperature, the shelf life of about two weeks, but this time also try not to allow oxygen to enter, so must be packed in a sealed jar.

If it is necessary to store for longer than two weeks, freezing is best. As long as it is sealed and stored, the quality will not change for two months after opening. If you want to use it, just take it out of the freezer, and even if it is taken out of the freezer, it can be ground immediately. If you buy ground coffee, avoid ambient storage, as coffee will lose its flavor after four days, even in an airtight container.

At this point, using cryopreservation is the best recipe. The coffee powder is frozen and stored in an airtight jar. The taste and aroma can be stored for about a month.