Material Composition | Multi-layer laminated structure: BOPET film (25–30 μm) for durability, aluminum foil (10–12 μm) as a high-barrier core, and food-grade PE inner layer for safe contact. Includes a one-way degassing valve made of polypropylene (PP). | |
Barrier Performance | Oxygen transmission rate (OTR) **<0.01 cc/m²/day**, moisture vapor transmission rate (MVTR) **<0.05 g/m²/day**, and 99% UV light blocking to preserve aroma and prevent staleness. | |
Certifications | Compliant with FDA 21 CFR 177.1520 (food contact for polymers), FDA 21 CFR 175.300 (adhesives), and ISO 22000 for food safety. | |
Sealing & Features | Heat-sealed edges with double-lock zipper for resealability. Degassing valve releases CO₂ (up to 1.5 bar pressure) without allowing oxygen ingress. | |
Applications | Ideal for whole coffee beans, ground coffee, and crunchy nuts (e.g., almonds, cashews). Compatible with nitrogen flushing for extended freshness. | |
Sustainability | Recyclable aluminum-PE composite; biodegradable valve variants available. Reduces environmental impact through reusable designs. | |