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Question 1

Why do coffee bags need a valve?

Accepted Answer

Roasted coffee beans release gas after roasting. A one-way valve can help release gas while reducing outside air entering the package.

Question 2

Which structure is commonly used for coffee packaging?

Accepted Answer

Coffee packaging often uses PET/VMPET/PE, PET/AL/PE or Kraft/VMPET/PE structures, depending on barrier requirement, appearance and budget.

Question 3

Is kraft paper coffee bag enough for barrier protection?

Accepted Answer

Kraft paper is mainly for appearance and tactile style. Coffee usually still needs an inner laminated barrier layer such as VMPET or aluminum foil.

Question 4

What should buyers provide for coffee bag quotation?

Accepted Answer

Buyers should provide bag size, filling weight, coffee type, valve requirement, zipper requirement, material preference, quantity, printing colors and artwork.