1. Flexible non-airtight packaging
This is an economic packaging. It is usually used by small local bakeries because they can guarantee a quick supply. Coffee beans can be consumed in time. Coffee beans in this
packaging can only be stored for a short time.
2. Air-tight packaging
After filling the coffee, vacuum and seal it. Due to the formation of carbon dioxide during the roasting process, this packaging can only be packaged after the coffee has been left for a period of time to degas it, so there is a storage interval of several days. Coffee beans last longer than ground coffee. Low cost because it does not need to be separated from air during storage. Coffee packed this way should be used up within 10 weeks.
3.One-way exhaust valve packaging
After roasting coffee is placed in a special one-way exhaust valve. The exhaust valve allows gas to go out, but not in. There is no need for a separate storage stage, but due to the venting process, there is a slight loss of fragrance. It prevents the formation of flavor, but does not prevent the loss of aroma.
4.Pressurized packaging
This is an expensive way, but can preserve coffee for two years. After roasting for a few minutes, the coffee can be vacuum-packed. After adding some inert gas, maintain the appropriate pressure inside the package. Coffee beans are stored under pressure so that the aroma flows onto the fat, thereby improving the flavor of the drink.
