1. Common materials of coffee bags
The material of the fresh-keeping coffee bag is very important and affects the quality of the fresh-keeping effect. The most commonly used materials include polyester, polyethylene, aluminum foil, nylon, etc.
Burlap bags: They are the most common and economical choice for packaging and transporting green coffee beans. Burlap bags are also renewable resources and are cheap in cost. The use of burlap bags does not require special technology or high-cost packaging equipment. However, the packaging of burlap bags cannot protect green coffee beans from moisture or environmental odors, and green coffee beans are prone to deterioration during transportation.
Aluminum foil bag: Aluminum foil has the characteristics of retaining fragrance and preserving quality, and can effectively block the entry of water vapor and moisture. Usually, aluminum foil coffee bags are equipped with breathable valves, which can effectively extend the shelf life of coffee beans. It can eliminate carbon dioxide, maintain a dry environment, and extend the shelf life of coffee beans. Therefore, when consumers choose to buy coffee, they often pay attention to whether there is a transparent valve on the packaging bag and make sure it is working properly to ensure fresh and delicious coffee.
Coffee pods and capsules: Coffee pods and capsules have gained popularity recently due to their convenience and consistent brewing results. They are usually made of plastic or aluminum foil and contain pre-measured coffee grounds. These single-serve packages are compatible with select coffee machines for a hassle-free brewing experience. However, it is worth noting that the impact of these packaging, especially plastic packaging, on the environment has caused concern among environmentally conscious consumers.
Composite materials: Composite materials can combine the advantages of multiple materials and combine coatings, profiles, composite membranes and other layers with base materials to form composite materials. This material is well protected against moisture, oxidation and light exposure. At the same time, composite materials can be combined according to different needs to meet the preservation needs of different types of coffee beans. The following are some common materials.
Kraft paper: Kraft paper coffee packaging is a multi-layered production package, with kraft paper on the outside and aluminum or MPET coating on the inside. Kraft paper packaging is a product made of environmentally friendly materials, which is more in line with the current society's environmental protection requirements for enterprises.
2. Storage and use of coffee beans
1) Correct storage method: When storing coffee bean packaging bags, they need to be placed in a dry, cool place, away from sunlight, and maintained at a suitable temperature.
2) Correct way to open the bag: Before opening the bag, the air in the bag needs to be exhausted to avoid the entry of oxygen. In addition, the coffee beans need to be used up as soon as possible after opening the bag to avoid vodka acid produced by the accumulation of moisture in the bag.
3) Reuse: Coffee bean packaging bags can be reused and can be used as artworks and decorations. They can also be used to make handmade products, such as handkerchiefs, grab orders, etc.
