Roasted coffee requires time, effort, and a great deal of trial and error to bring out its rich and pleasing aroma. But with roasted coffee taking time to reach its destination, packaging plays an important role. The right materials and features can preserve the coffee’s aroma for long enough to ensure that consumers experience the flavors you list on the coffee pouches.
In 1895, Thomas Royal made the first multi-layer paper coffee bags. One layer is hardly enough to protect the aroma of roasted coffee beans, and a combination of different materials is needed to protect against moisture, oxygen, sunlight, heat and other factors. He found that this was the most effective oxygen barrier compared to plastic, paper and other more porous alternatives. Aluminium is also resistant to moisture. Polymer films coated with a thin layer of aluminium are therefore widely used.
2.How to customize the material construction of the coffee bag?
1) PET / VMPET / LLDPE: this material is good barrier and toughness, with the possibility of adding an air release valve.
2) Kraft Paper / PET / AL / LLDPE : This material uses paper for a textured look and aluminium foil for added barrier, with the possibility of adding an air release valve.
3) PET/ AL / LLDPE: This material has good barrier and toughness, with aluminium foil for added barrier.
4) MOPP / PET /AL /LLDPE: If you want a matte surface, we could use this structure with good barrier.
5)PE/EVOH/PE is reacyclable material, we also us it to make coffee pouch, with EVOH high barrier material.
4.How to consider the characteristics of coffee bags?
Filling process, bags with smaller openings take longer to open and fill than bags with wider openings.
Exhaust valve, bags without an air valve will often swell or even burst open. The exhaust valve allows the carbon dioxide released by the roasted coffee to escape from the bean bag.
Tear corner, avery simple design that allows the user to open the bag more quickly.
Zipper or tie, in order to keep the coffee fresh, the bag should be able to be resealed after opening. A clip is a user-friendly design that creates an airtight space. Ties are also an option.
Valve
Tin Tie
Hot Foil Stamping
Closure Zipper
5. Use digital or gravure printing to make coffee bags?
Digital Printing
When you have multiple Skus or small qty demand, and want to test market, you could choose digital printing to save cost and time.
Gravure Printing
After sample orders, when you want to make mass production of single Sku, you could choose gravure printing and price will be very low.