Imagine your favorite snack at its absolute peak: chips so crisp they crackle with every bite, coffee beans releasing their aromatic oils, nuts with their natural oils perfectly preserved. Now imagine that same snack after three weeks in suboptimal packaging: stale, soggy, flavorless.
At YingFei Pack, we see this tragedy play out every day. Brilliant food products, destroyed by inadequate packaging. It's why we approach food packaging not as a commodity, but as a preservation science.
Those technical terms - OTR, WVTR, COF - aren't just industry jargon. They're the secret weapons in the war against food spoilage. Let's break them down:
OTR (Oxygen Transmission Rate)
Think of oxygen as public enemy #1 for most foods. It causes:
Rancidity in oils and fats (that "off" taste in nuts and chips)
Degradation of colors and flavors
Growth of aerobic bacteria
Our solution: We engineer barriers with OTR ratings as low as 0.1 cc/m²/day - effectively creating a vacuum-like environment without the vacuum.
WVTR (Water Vapor Transmission Rate)
Moisture is the stealthy saboteur that:
Steals crispness from crackers and chips
Creates clumping in powders
Promotes mold growth
Our solution: Our moisture barriers can achieve WVTR ratings below 0.5 g/m²/day, keeping your products crisp in humid environments.
COF (Coefficient of Friction)
This seemingly obscure measurement determines:
How smoothly bags run on packaging equipment
Whether bags stick together during shipping and storage
How easily consumers can access the product
Our solution: We fine-tune COF to perfection, ensuring your packaging works flawlessly from our production line to your customer's hands.
Here's how we match materials to food types:
For Oily/Fatty Foods (Nuts, Chips, Coffee)
We recommend structures with exceptional oxygen barriers like:
Metallized films that block 99.9% of oxygen and light
EVOH layers that provide superior gas barrier even in thin gauges
Special sealants that prevent oil migration through seams
For Dry/Crispy Foods (Crackers, Cereals, Cookies)
The priority here is moisture protection:
High-barrier laminates with specialized water-resistant layers
Precision sealing that creates moisture-tight environments
Reinforced corners on stand-up pouches where moisture often penetrates
For Fresh/Frozen Foods
These require a different approach:
Puncture-resistant materials that withstand freezing temperatures
Anti-fog treatments that maintain visibility
Consumer Convenience
Easy-open features, resealable zippers, and clear windows that enhance the user experience.
Brand Enhancement
At YingFei Pack,Printing technologies that make your food look as good as it tastes.