Zero-Pinhole Integrity | Ultra-High Barrier | Shelf-Stable Protection
121°C High-Temperature 3 side aluminum foil sealed bag is the industry-leading heat-sterilized packaging solution engineered to withstand 121°C retort sterilization for 30–60 minutes. Built with a reinforced multi-layer structure, this high temperature resistant 3 side seal retort bag delivers zero-pinhole integrity, ultra-high barrier performance, and shelf-stable protection for up to 24 months without refrigeration. Ideal for food and medical applications, our high-temperature retort pouch ensures airtight sealing, leak prevention, and long-lasting freshness for your products.
● During the High-Temperature 3 Side aluminum foil sealed bag process, pressure changes and folding can cause microscopic cracks (pinholes) in the aluminum foil, compromising the barrier.
● We incorporate a high-tenacity BOPA (Nylon) layer between the PET and the Foil/Sealant layers. This acts as a shock absorber, significantly increasing the pouch's flex-crack resistance. Every High-Temperature 3 Side aluminum foil sealed bag is guaranteed to remain intact and puncture-free, even after the most rigorous sterilization cycles.
● We blow our own R-CPP (Retort Cast Polypropylene) sealant film. This specialized material is formulated to maintain its molecular structure at 121°C, preventing the "seal softening" or delamination that leads to leaks.
● Our lidding and bag materials are bonded with high-performance retort-grade adhesives that are 100% solvent-free, ensuring no odor migration and maximum food safety under high heat.
● Tear Notches: Precise, easy-start notches for consumer convenience.
● Rounded Corners: Prevents the sharp edges of the 3 side seal high-temperature retort pouch from puncturing other bags during bulk shipping.
● 10-Color Printing: High-definition rotogravure printing using heat-stable inks.
Our 3 side seal aluminum foil packaging bags for meat seafood packaging is widely used for ready-to-eat proteins, marinated chicken breast, beef brisket, pork chops, steamed fish, shrimp, and shellfish in sauce. It also suits pre-cooked agricultural products like sweet corn, beans, and chestnuts, as well as medical supplies requiring high-pressure autoclaving.
By manufacturing our own R-CPP sealant, we control the most critical layer of the High-Temperature 3 side aluminum foil packaging bags. This allow us to customize the heat-seal strength and "easy-tear" properties to perfectly match your sterilization equipment and product weight.
Every batch of our 3 side seal retort pouch products undergoes a simulated 121°C retort test in our lab. We perform pre- and post-retort burst tests to ensure the seams can handle the internal pressure expansion during the heating cycle.
As a professional custom retort pouch manufacturer, we offer wholesale 121°C 3 Side Seal Retort Pouch with flexible MOQ and fast delivery. Our food packaging 3-side seal high temperature retort pouch supports full-color custom printing, size customization, and material selection to meet diverse packaging needs.
Trusted globally. Our BRCGS and ISO 9001 certified facility guarantees FDA/EU food-contact compliance. Meet your ESG goals with our TUV-certified compostable or 100% recyclable mono-PE options.
No delamination.
Engineered for pressure safety.
For Aluminum structures.
Yes, this high-temperature aluminum foil retort pouch uses food-safe, solvent-free adhesives and retort-grade sealant, ensuring safety under high heat.
