Go with a stand-up pouch in a foil laminate, with a one-way valve and a zip. Fresh coffee gives off CO₂ for days; the valve lets it out without letting oxygen in. Foil is what keeps it tasting right past month three.
| Format | Stand-up pouch, zip |
|---|---|
| Size (W × H + G) | 130 × 210 + 80 mm |
| Structure | PET 12 / AL 9 / LLDPE 90 |
| Valve | One-way degassing |
| Digital, up to about 2,000 pcs |
Check before you order: ask for 10 blank samples and fill them yourself. Whole beans and ground coffee settle differently; the same 250 g can need a taller pouch.