Coffee

People's living standards continue to improve, and work is getting busier and busier. In recent years, coffee has become a favorite drink for young people. A cup of coffee when you are sleepy at work and a cup of coffee when you stay up late at night.

coffee varieties sold on the market are mainly whole coffee beans, coffee powder and instant coffee. Coffee is usually sold after being fried and ground into powder. The four major factors affecting the preservation of coffee include light, oxygen, humidity and temperature, so it is better to keep these four factors in a low state as far as possible. The main quality change of coffee is the volatilization of aromatic components and the change of volatile components caused by moisture and oxygen. With the change of aromatic substances, coffee gradually ages, corrupts and produces cocoa smell. At this time, it can be considered that coffee has deteriorated and failed. The improvement of temperature and humidity in coffee storage environment will accelerate this deterioration. Coffee is easy to volatilize and lose its aroma, and its oil and aromatic components are susceptible to oxidation, especially when affected with moisture, it will accelerate its damage. Therefore, the packaging of coffee must exclude oxygen, and must be isolated from the packaging volatilization of aromatic components and absorption of odor from the outside world, bagged coffee is the development trend of packaging, so manufacturers in the choice of packaging materials and packaging equipment is particularly important.