How to store coffee beans

As coffee becomes known to more and more people, people no longer buy processed coffee, but buy roasted coffee beans to brew their own coffee. When brewing coffee by yourself, the whole process from the beginning to the introduction is a pleasure. Although it is enjoyable to make your own coffee, you also need to be careful when storing coffee beans. If the coffee beans are not stored properly, the quality will change.

Storing coffee beans in their unground state

From the moment the coffee is ground, the aroma particles it carries will begin to dissipate rapidly into the air. Therefore, even after grinding, a large amount of aroma will drift away even after only a short period of time. So if you grind the coffee beans into powder and store them, you will find that there is a bean grinder next to the espresso machine. This is to preserve the aroma of the coffee as much as possible. After the coffee powder is ground, it is extracted immediately to allow the coffee aroma to be integrated into the coffee as much as possible.

Store in a place free from moisture

The moisture content of roasted beans is usually between 1% and 2%. If the weather is humid, they will absorb moisture, and the absorbed moisture will affect the coffee. This phenomenon is called "unintended premature extraction" and it can quickly deteriorate the aroma of the coffee and produce a bad odor.

Use airtight containers or packaging

Although roasted coffee beans do not spoil because they contain less water. On the other hand, because coffee is a seed crop, it contains a very high content of fat, which will start to become sour and corrupt if it comes into contact with oxygen. Therefore, it is better to use a sealed container that can isolate oxygen as much as possible. When storing coffee, the most important thing is to isolate it from light and outside air. For this reason, most coffee bags are aluminum-plated to keep out air and light.

The best way to store coffee is in tin cans.

But if you go to most coffee shops, you will find that many stores use transparent sealed bottles to store coffee. This is based on display considerations, because the store must display the coffee in order to sell it. The coffee in this type of coffee shop is usually sold out very quickly, so the possibility of it tasting bad due to improper storage is extremely small.

It is best to store at room temperature 10-20 degrees C

It's better to consume coffee quickly before it goes bad at room temperature. However, if you have to store a large amount of coffee and cannot use it up before it turns sour, storing it in the refrigerator is also a method.