How long can open coffee beans last? How can coffee powder not taste bad? Professional coffee powder preservation teaching.

The freshness of coffee beans will directly affect the taste of a cup of coffee, and whether it is properly preserved is an important factor affecting the freshness of coffee beans. How to preserve the roasted coffee beans? Roasted coffee beans need to pay attention to humidity, temperature and oxidation, which will speed up the flavor dissipation of roasted coffee beans.

So how long will the coffee beans in Kaifeng last?

The taste period of coffee beans is within 4-30 days after the coffee beans are roasted. Coffee beans after the taste period does not mean that they can no longer be drunk, but even if the coffee beans are properly preserved, the flavor of the coffee will dissipate. Therefore, the flavor of coffee beans after 30 days may be lack of aroma, boring and so on. Apart from the flavor and aroma, the shelf life of roasted coffee beans is 365 days.

The taste period of ground coffee powder is even shorter, and if it is not preserved well, it may lose its flavor in a week, so use it as soon as possible.

How can we keep the coffee beans for as long as possible? Let's first learn about the "killer" of coffee bean freshness.

Coffee bean freshness "killer" ①

Light source & high temperature

A light source refers to sunlight. The heat of the sun will accelerate the volatilization of the aroma (aroma) of coffee beans. The inner layer of the coffee bean packaging sold in Qianjie Coffee uses aluminum foil, which can reflect light, but does not achieve real thermal insulation, so keep the coffee beans away from the heat source.

Coffee bean freshness "killer" ②

Humidity

Humidity refers to the moisture of the air. Originally dry coffee beans in a humid environment for a long time, even with the protection of sealed containers will not escape the invasion of moisture when opened. Damp coffee beans are easy to deteriorate and produce moldy and other odors, which will directly affect the performance of coffee taste, so a dry environment can better keep coffee beans fresh.

Coffee bean freshness "killer" ③

oxygen

See here, you may say: "oxygen is everywhere, it is impossible to avoid oxygen ~" do not worry, here is not to put an end to coffee beans and oxygen contact, is to reduce the contact time between oxygen and coffee beans as much as possible. When we unseal and remove the coffee beans, the coffee beans still in the package / container should be sealed as soon as possible to slow down the oxidation rate of the coffee beans.