How to preserve coffee beans? What is the coffee bean killer?

Every time you buy coffee beans, you may want to try different kinds of coffee beans at the same time, but a bag of coffee beans always takes off by half a pound. If you are on the edge and can't finish your ⋯⋯at once, how do you save the coffee beans?

So another problem arises: what if the coffee beans are kept for too long and the coffee becomes untasty?

Coffee beans are like other foods, the more fresh they are, the more they can taste the most authentic flavor. therefore, how to maintain the freshness of coffee beans is an important topic for coffee people.

So how to tell whether the coffee beans are young and beautiful?

Since we want to maintain the freshness of coffee beans, we must first know what kind of coffee beans can be called fresh!

You may have heard a myth:

"the oil from this coffee bean is so serious that it feels like it's been there for a long time! "

If you judge the oil condition with your eyes alone, it may be inaccurate, just like picking an object. ), "smell" and "peel" must be added. If it is not fresh coffee beans, you will smell oil consumption, and coffee beans because of a long time to absorb water in the air and soft, easy to peel in half.

The killer who makes coffee beans old?

Oxygen, bright, wet, hot

Although "oxygen" is listed as one of the killers, when coffee beans are just roasted, they need oxygen and other air to exchange in order to raise the taste to a higher level. this stage is commonly known as "soothing", just like red wine needs to experience "sober up", and the duration of each type of coffee beans is different, some may be 2ml for 3 days, but some have to be kept for 23 weeks. However, it should be noted that once the bean cultivation period is over, too much oxygen will make the taste of coffee beans deteriorate!

"bright" and "hot" accelerate the change of coffee beans with oxygen and other gases, greatly reduce the preservation time of coffee beans, and make the flavor rigid. As for "wet", just like other foods, coffee beans in contact with water can easily lead to mildew, make flavor easy to lose, and even produce toxins, which is harmful to the human body.

Therefore, it is very important to use bean cans to preserve coffee beans, which will effectively prevent air and water from coming into contact with coffee beans.

Of course, if you can, drink it as soon as possible is the best choice!

What should I do if I really unfortunately leave the coffee beans for too long?

How to preserve coffee beans?

In fact, you can put coffee beans in the refrigerator, and freezing will last longer than refrigerated. Why?

Coffee beans are easy to absorb the smell of other foods. if you have to keep them in the cold, be sure to pack them in a small packet or keep them in a sealed jar, and take only some of them every time you take them out, otherwise the coffee you drink will definitely break your imagination. In addition to sealed cans, there are more new options for vacuum boxes! )

Then, regardless of freezing and refrigeration, be sure to pack it separately. Otherwise, a large bag of coffee beans will be repeatedly de-iced, and the killer will be entangled with coffee beans.