How long can the coffee last? How long is the best time to finish hanging ear coffee? Is hanging ear coffee instant coffee?

In addition to coffee beans, Qianjie stores also sell hanging ear coffee. However, hanging ears need to be made on-site, so if a customer wants to buy a pack of hanging ears at the store, they usually have to wait about 10 minutes without making a reservation.

So some customers would ask such a question while waiting: "Isn't it more efficient to prepare the ear hanging in advance? "Indeed, if you do it well in advance, you can indeed increase everyone's efficiency. Qianjie does not need to go through a lot of on-site production, and guests and friends do not need to wait too long. However, Qianjie still adopted this less efficient method. The reason is that the tasting period for hanging ears is relatively short.

Why is the taste period of hanging ear coffee shorter? First of all, we need to know that freshly ground coffee is more popular because we can drink a richer coffee flavor from freshly ground coffee. The main source of coffee flavor is the aroma generated by coffee beans during the roasting process. The aroma is the dominant factor, and combined with other sensory experiences to associate the specific food taste. This is the formation of coffee flavor.

However, the aroma is volatile! After the coffee beans are roasted, the aroma and carbon dioxide will continue to evaporate from the inside out. Generally, the taste appreciation period we call it refers to the period after carbon dioxide evaporates until it will not affect the extraction and before the aroma completely dissipates. Because during this time, we can very easily dissolve the flavor substances in the coffee and make a cup of delicious coffee with strong flavor and full taste. Generally speaking, the taste period of coffee beans will last for about two months. Two months later, the aroma in the coffee beans has almost evaporated. At this time, when we brew again, we can only wash out the sour, sweet and bitter taste of the coffee itself.

Without the aroma, although the coffee is not too bad to drink, it tastes like a relatively "dull","wooden" and plain feeling. Therefore, under normal circumstances, everyone will consume all coffee beans within two months, and then buy freshly roasted coffee beans to replenish them. However, it should be noted that the two-month tasting time mentioned in Qianjie is limited to coffee beans, and there are no complete individuals that have been crushed into powder. Because the surface area exposed to the air when the coffee beans are intact is relatively small, coupled with the physical barrier formed by the shell and tight structure, the rate of aroma loss is very slow.

These "fragrant" effects will be completely lost after the coffee beans are ground into coffee powder! Because when the coffee beans are ground into coffee powder, the surface area will increase geometrically, and the evaporation rate of the aroma will be greatly accelerated! Naga ear coffee uses pre-ground coffee powder, so compared to coffee beans, the taste period of hanging ear coffee is very short.

How short is it? Under the same storage conditions, the aroma loss of coffee powder is about twice that of coffee beans. In other words, if the taste period of coffee beans is 2 months, then the taste period of coffee powder/hanging ears using coffee powder is about 1 month. Because of this, many merchants will try every means to lock in the aroma of hanging ear coffee! So this is why Qianjie stores insist on making ear hanging first. The purpose is to reduce the loss of coffee aroma and allow the taste period to be longer ~

In order to prevent some friends from misunderstanding, Qianjie here still reminds us that the taste appreciation period is not equal to the shelf life. The shelf life of coffee is as long as 365 days. After the taste appreciation period is over, we can still brew as usual, but its aroma is not so good. It makes it a little more bland to drink, that's all.

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