Bags of roasted coffee beans (powder) has diverse ways in packaging forms. Since coffee beans will naturally generate carbon dioxide after roasting, so if pack directly will cause packaging damage easily, and if prolong to exposure to air will cause aroma loss in coffee bean oil . Because oxidation of ingredients can cause quality degradation. Therefore, the way to pack coffee beans (powder) is particularly important.
How to solve the problem? By adding a one-way valve to the coffee bag,allow the generated carbon dioxide to escape,but blocks the entry of external air.It prevent coffee beans from oxidation, and effectively keep beans aroma. Such packaging can be stored for up to 6 months. There are also some coffees that are packaged with vent holes, that is, only vent holes are made on the packaging bag without adding a one-way valve, so that once the carbon dioxide generated by the coffee beans is emptied, the outside air will enter the bag, and cause oxidation, so validity period is greatly reduced.
Different types of coffee bags have different materials. Generally, the raw bean packaging material is relatively simple and is the ordinary sack material. There are also no special material requirements for instant coffee packaging, which basically uses general food packaging materials. But packaging of coffee beans (powder) commonly use opaque plastic composite materials or environmentally friendly kraft paper composite materials due to the requirements of anti-oxidation.
In order to re-seal use, a tin bar will be added to the sealing edge. Like a metal wire, it has the excellent performance of bending and deforming with the action of external force, losing the action of external force and not rebounding, keeping the existing shape unchanged, and can be perfectly combined with the coffee bag to achieve a high-quality sealing effect. The functional coffee bag sealing strip is mainly used in the mouth of the coffee bag, which can fix the mouth of the bag, and play the role of sealing, keeping fresh and moisture-proof, and preventing insects from crawling in.
multi-layer composite process
The interior adopts composite technology to block moisture and gas circulation to protect the original and moist odor of internal products
coffee bag sealing strip
which can fix the mouth of the bag, and play the role of sealing, keeping fresh and moisture-proof, and preventing insects from crawling in.
Vertical bottom pocket
Can stand on the table to prevent the contents of the bag from being scattered
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