Why roasted coffee may need a valve
Freshly roasted coffee can release gas. A valve is one element that may be discussed as part of the package design for that product condition.
Pair the valve with the right bag
The bag structure, closure, fill weight and panel area should be evaluated together. A valve alone does not define the full packaging solution.
Prepare the production brief
Share the coffee type, target fill weight, packing timing, bag format and intended market so the relevant options can be reviewed.