1 non-airtight, flexible packaging: this is the most economical packaging. Usually is a small bakery plant, because they can guarantee rapid delivery. Coffee beans can be consumed in a timely manner. Coffee beans under this package can only be saved for a short time.
2, air tight packaging: after installing your coffee, vacuum and seal it up. Due to the baking process of carbon dioxide, this package only for a period of time to make it to the coffee degassing before packaging, storage intervals of a few days. Time longer than ground coffee coffee beans. Because storage does not require separate it from air, low cost. Coffee under this package should be used up within 10 weeks.
3, one-way valve package: roasted coffee in the specially designed with a one-way valve. This valve allows gas to go out, but you can’t come in. Does not require a separate storage stage, but because of the discharge process, the smell will be a little lost. It avoids the formation of corruption, but could not stop the loss of aroma.
4, compression packaging: this is the most expensive way, but save some coffee for as long as two years. After several minutes of baking, coffee is vacuum-packed. After joining some inert gases, at just the right pressure in the packaging. Store coffee beans in pressure, and let the air flow on the fat, which improves the flavor of the drink.