- Jan 19, 2018 -
1, flexible non-hermetic packaging: This is the most economical kind of packaging. Usually used by small local bakery plants because they guarantee a quick delivery. Coffee beans can be consumed in time. This package of coffee beans can only be stored for a short time.
2, air tight packaging: After loading coffee, vacuum and sealed up. Due to the formation of carbon dioxide during the baking process, the package can only be packed after the coffee has been degassed for a period of time and therefore has several days of storage. Coffee beans stay longer than coffee. The cost is low because it does not need to be separated from the air during storage. The coffee in this package should run out within 10 weeks.
3, one-way exhaust valve packaging: roasted coffee on a special way with one-way exhaust valve. This vent valve allows gas to go out but can not come in. There is no need for a separate storage phase, but there is a slight loss of flavor due to the deflation process. It avoids the formation of corrupt taste, but can not prevent the loss of aroma.
4, pressurized packaging: This is the most expensive way, but can save coffee for two years. After a few minutes of baking, the coffee can be vacuum-packed. After adding some inert gas, the packaging to maintain the appropriate pressure. Coffee beans are kept under pressure, allowing the aroma to flow over the fat, thereby improving the flavor of the beverage.