Guide des valves et fermetures pour sacs à café
Guide des valves unidirectionnelles et fermetures refermables pour sacs à café. Fonction, types et compatibilité.
Valve and zipper solve different problems
Use a one-way valve when roasted coffee gas must be managed and a zipper for consumer reclosure. Neither replaces barrier laminate or a reliable top seal.
Test the finished coffee pack
Confirm roast, packing interval, fill weight, valve position, zipper spacing, leakage and filled-bag handling with representative coffee.
Produits associés
Questions fréquentes
Does every coffee bag need a valve?
No. The need depends on roast state, packing timing, product form and measured gas release.