How to extend the taste period of coffee beans? How to store the coffee beans I just bought?
Dear friends, New Year's Eve is happy.
I believe you have hoarded a lot of beans for the long annual holiday, just to be able to taste the delicious coffee during the Spring Festival. But often, some friends worry about their storage because they have bought too many beans. After all, once the taste period is over, the flavor of the coffee will be greatly lost. Therefore, Qianjie Coffee will share with you today, the best way to store coffee beans.
What is the period of raising beans? What is the tasting period? Coffee beans in the roasting process will produce a lot of carbon dioxide, most of this carbon dioxide will be hidden in the coffee beans after baking, they will affect the extraction! However, they will continue to be excreted from the bean body over time. Therefore, when the coffee bean is roasted and the amount of carbon dioxide in its body is excreted until it does not affect the extraction, we call it the "bean cultivation period"!
This is not to say that only carbon dioxide will be discharged from the bean body, and so are aromatic substances! Both of them will be excreted and oxidized over time. Therefore, in the period when most of the aroma substances have not been discharged, it will be called the "taste period", during which the aroma of coffee is the richest! Generally speaking, the best taste period of coffee beans will be about 45 days, as long as they are properly stored.
Three natural enemies of coffee beans
When we store coffee beans, whether bagged or canned, we need to avoid the following three factors, because they will directly reduce the freshness of coffee beans! First, oxygen is a factor that has the greatest impact on coffee beans. A large amount of oxygen exposure will accelerate the oxidation of coffee beans. Like other factors, it consumes the freshness of coffee beans like "slow cooking", while oxygen, just open the bag and let the coffee beans come into contact for a period of time, can make you realize what is "gone and tasteless".
Of course, it is very difficult for us to isolate oxygen, but what we can do is to reduce the contact time between fresh oxygen and coffee beans. For example, after we unseal and take out coffee beans, we only need to seal them immediately. It can reduce the time of fresh oxygen exposure of beans in bags / cans.
Second, the humid environment means that the storage space of coffee beans is filled with a lot of moisture, and when dry coffee beans come into contact with too much moisture, they will get wet! Damp coffee beans are easy to produce a series of negative conditions such as spoilage, mildew and so on. Especially for deeply baked beans, they are easy to produce oil, it is difficult to tell whether they are damp or not, and they will be washed and drunk if they are not careful. Therefore, it is most appropriate to keep coffee beans in a dry environment as far as possible!
Third, the high-temperature storage environment is not only dry, but also pay attention to stay away from all places where heat sources can be generated! These include all household appliances that can be heated, as well as light sources with heat (especially sunlight).
Under the "baking" at high temperature for a long time, the aromatic substances of coffee beans will be volatilized at a multiple rate, and the taste period of tens of days will be sharply shortened under the influence of high temperature, therefore, a cool and dry environment is the best storage place for coffee beans! By the way, although the bags of many coffee beans are insulated with aluminum foil, they are also difficult to stop in the face of continuous high temperature. What Qianjie Coffee wants to say is: don't expose the coffee beans to the sun because of the opacity of the bag.
To sum up, as long as we try to avoid these three "natural enemies" when storing coffee beans, we can make coffee beans hold rich aromatic substances for a long time! If possible, Qianjie Coffee recommends buying bean cans that can vacuum, which can better isolate oxygen, prolong the freshness of coffee beans, or seal the exhaust valve holes of bean bags with stickers, which can also slow down the oxidation rate of coffee beans!
With regard to frozen preservation, some friends often come up with the idea of using frozen coffee beans to prolong the taste period, but just like the experimental article published by Qianjie Coffee last year, frozen coffee beans not only require higher packaging and frozen environment, but also need to adjust the parameters and methods of brewing! Without knowing it, it does more harm than good, so it is suggested that friends should not freeze, fresh coffee beans are the best to drink.
Front Street Cafe
No. 10 Baoqian street, Yandun road, Dongshankou, Yuexiu district, Guangzhou, Guangdong province
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