What Material Should Be Chosen for Coffee Packaging?

Coffee has long been packaged and entered thousands of households, becoming a necessity for many consumers. The material of coffee packaging should consider the aroma of coffee and whether it is convenient.

Coffee is a strong-flavored product, and it needs a good sealing effect to preserve it. Due to the requirements of anti-oxidation, opaque plastic composite materials and more environmentally friendly kraft paper composite materials are generally used. Aluminum foil is also relatively common. Using the sealing performance of pure aluminum, it can well protect the original flavor of coffee, not lose the aroma, not easy to be affected by moisture, and avoid light.

Aluminum foil material is colorless, odorless, non-toxic and can directly contact food, so it is used to pack coffee, which also includes cost considerations. In addition, the common material of coffee bags is easy-to-tear film, which is very suitable for the current popular convenience trend and can better cater to the market.

Bag packaging is generally divided into: non-airtight packaging, vacuum packaging, one-way valve packaging, and pressurized packaging.

Non-airtight packaging: It is actually a temporary packaging that is only used for short-term storage.

Vacuum packaging: roasted coffee beans need to be placed for a period of time before packaging to prevent carbon dioxide from damaging the packaging. This type of packaging can generally be stored for about 10 weeks.

One-way valve packaging: Adding a one-way valve to the packaging bag allows the generated carbon dioxide to be discharged but blocks the entry of external gas, ensuring that the coffee beans are not oxidized but cannot prevent the loss of aroma.

This type of packaging can be stored for up to 6 months. Some coffees are also packaged with vent holes, that is, only vent holes are made on the packaging bag without installing a one-way valve. Once the carbon dioxide generated by the coffee beans is emptied, the outside air will enter the bag, causing oxidation, so its storage time is greatly reduced.

Pressurized packaging: After the coffee beans are roasted, they are quickly vacuum packaged and then filled with inert gas to seal. This type of packaging can ensure that the coffee beans are not oxidized and the aroma is not lost. It has enough strength to ensure that the packaging is not damaged by air pressure. It can be stored for up to two years.