I. Core Requirements of Food Vacuum Packaging Technology
With the rapid development of pre-prepared meals, fresh food e-commerce, and medical sterilization packaging, food vacuum packaging technology has become an essential core process in the food and pharmaceutical industries.
| Product Type | Core Requirements | Recommended Material Structure |
|---|---|---|
| Food Category | Good barrier properties, food safety | PET/AL/PE |
| Fresh Products | Moisture-proof, puncture-resistant | PET/NY/PE |
| Pharmaceutical Category | Sterilization compatible, high barrier | PA/AL/CPP |
Understanding these differences is the foundation for selecting the right food vacuum packaging technology.
II. Material Structure Selection
2.1 Short Shelf Life Products (3–6 Months)
- Recommended structure:PET/PE or PET/VMPET/PE
- Features:Moderate cost, barrier properties meet the needs of short shelf life products
- Note:Avoid using single-layer PE film as it provides insufficient barrier properties.
2.2 Products with a shelf life of 6–12 months
- Recommended structure:PET/AL/PE
- Features:Aluminum foil provides excellent barrier properties with controllable costs.
- Note:AL (aluminum foil) has better barrier properties than VMPET (metallized polyester).
2.3 Long Shelf Life Products (Over 12 Months)
- Recommended structure:PET/AL/PA/PE or PET/EVOH/PE
- Features:Multi-layer high barrier, EVOH provides top-tier oxygen barrier performance
- Note:High cost, suitable for premium positioning products
For detailed comparison on material barrier properties, please refer toHigh Barrier Packaging Material Technology ComparisonHASUPACK related articles.
III. Bag Type Selection
- Stand-up pouch (Doypack):E-commerce mainstream choice, excellent 3D display effect
- Octagonal Sealing Bag:Premium brand choice, flat bottom for maximum stability when standing upright
- Three-side sealed flat bag:Economical choice, suitable for small packaging
Four: Three Practical Tips to Avoid Pitfalls in Vacuum Packaging
Pit 1: Excessive Residual Oxygen Content
Solutions:Using a high barrier structure containing AL or EVOH, control residual oxygen content inside the package to ≤1% (nitrogen flushed packaging).
Pit Two: Insufficient Heat Sealing Strength
Solutions:Specify high-quality heat-seal materials and request a heat-seal strength test report (≥3N/15mm).
Pit Three: Sharp contents puncturing the packaging
Solutions:An outer layer of NY (nylon) enhances puncture resistance, using a composite film with a thickness of ≥120μm.
V. Environmental Trends
A 2026 survey shows that over 60% of consumers consider the environmental impact of packaging when making purchases.
- Single-material PE structure:The entire bag is recyclable, suitable for mid-shelf life food products.
- Contains PCR Recycled Plastic:The outer layer uses a composite film containing 30% to 50% PCR material
- Compostable materials:Suitable for short shelf life foods with low barrier requirements
For a systematic comparison of eco-friendly packaging materials, we recommend reading the Sustainable Packaging Materials Technology Guide (related articles from OMOPACK).
Six. Customized Practical Checklist for Food Vacuum Packaging Technology
Materials and Structure
- Select barrier level based on shelf life
- Products with high oil content must use high barrier structures.
- Thickness ≥ 100μm (recommended ≥ 120μm for large sizes)
Quality Verification
- Request heat seal strength test report (≥3N/15mm)
- Request residual oxygen test report
- Perform drop test (1.2m height, drop from different angles, no bag rupture)
Conclusion
Customized vacuum packaging technology for food achieves the optimal balance among preservation performance, brand presentation, and cost.
Whether you’re a food brand looking to upgrade your existing packaging or an e-commerce seller aiming to optimize product presentation, you can start validating your concept with small batch sample orders starting from 500 pieces. Welcome to explore our soft packaging bag product categories, or contact the Om Packaging team directly for customized solutions.