The Vault Series leverages laminated structures that combine specialized materials, each layer performing a critical, singular function. This approach delivers far superior barriers than any co-extruded or mono-material alternative.

Option 1: The Industry-Standard Fortress - PET/AL/PE
The benchmark for maximum, cost-effective protection.

• Layer 1 (Exterior & Graphics): PET (Polyethylene Terephthalate), 12-15 microns.

  • Function: Provides exceptional tensile strength, gloss, and a flawless printing surface for vibrant, durable branding. It offers excellent resistance to scuffing and punctures from handling.

• Layer 2 (The Impervious Shield): AL (Aluminum Foil), 6-9 microns.

  • Function: This is the ultimate barrier. It creates a complete, absolute blockade against oxygen, moisture, light (100% UV and visible light), and aromas. The aluminum foil layer is the most effective, impenetrable material available in flexible packaging, ensuring zero transmission of gases and light.

• Layer 3 (Sealant & Protection): PE (Polyethylene), 60-80 microns.

  • Function: Provides a thick, food-safe, heat-sealable inner layer. It protects the delicate aluminum foil from cracking and forms a strong, reliable seal for bag integrity. Its smooth surface locks in aromatic compounds.

Structure Summary: PET / Aluminum Foil / PE

• Key Advantage: Absolute Barrier. The aluminum foil provides a near-perfect, impregnable shield. This structure offers the longest possible shelf life and is ideal for coffees with high oil content (dark roasts) or those destined for long-term storage, export, or challenging climates.

• Visual Cue: Classic, premium "foil bag" with a distinct metallic crinkle and outstanding deadfold characteristics.

Option 2: The Armored Performance - PET/AL/PA/PE
The premium choice for unmatched durability and resilience.

• Layer 1 (Exterior & Graphics): PET, 12 microns.

  • Function: Superior graphic reproduction and external durability.

• Layer 2 (The Impervious Shield): AL (Aluminum Foil), 7 microns.

  • Function: The same absolute barrier to oxygen, light, and moisture as in Option 1.

• Layer 3 (The Armor Plate): PA (Polyamide, or Nylon), 15 microns.

  • Function: This is the game-changer. The nylon layer adds exceptional puncture resistance, tear strength, and flex-crack endurance. It armors the aluminum foil, preventing the formation of micro-cracks (pinholes) that can occur during filling, shipping, or handling of the liquid-style bag. This ensures the foil's barrier integrity remains intact over time.

• Layer 4 (Sealant): PE, 50-70 microns.

  • Function: A robust, food-grade sealing layer that ensures strong seams and aroma retention.

Structure Summary: PET / Aluminum Foil / PA (Nylon) / PE

• Key Advantage: Armored Absolute Barrier. It combines the absolute protection of foil with the rugged durability of nylon. This is the ultimate structure for brands that prioritize both maximum shelf life and absolute reliability in the supply chain. It is exceptionally resistant to failure, making it perfect for high-volume operations, subscription services, and premium products where packaging integrity is paramount.

1. AromaLock™ Valve Integration: These rigid film structures provide an ideal, stable substrate for installing a high-capacity, laser-perforated or ultrasonic-welded one-way degassing valve. The valve is meticulously calibrated to allow CO₂ to escape from even the most gassy, fresh roasts without ever allowing oxygen ingress or the precious backflow of volatile aromatics.

2. Total Light Annihilation: The aluminum foil layer is 100% opaque, creating a permanent darkness within the bag. This completely halts the photodegradation of coffee oils (leading to rancidity) and preserves color and delicate compounds.

3. Liquid-Bag Performance: The inclusion of the PA layer in Option 2 is particularly critical for the liquid-stand format. It gives the bag the perfect memory and flexural strength to stand upright with a rigid bottom gusset, yet conform smoothly to the coffee's shape without compromising the foil barrier.

• Shelf Life Guarantee: These structures are scientifically proven to preserve optimal coffee freshness for 12-18 months, effectively putting flavor in suspended animation.

• The Gold Standard: PET/AL/PE and PET/AL/PA/PE are the materials specified for the most demanding barrier applications—pharmaceuticals, military rations, and high-end specialty foods. Using them signals an uncompromising commitment to quality.

• Target Audience:

  • PET/AL/PE: The cost-effective "absolute barrier" for premium roasters seeking the longest possible freshness window.

  • PET/AL/PA/PE: The "armored luxury" choice for top-tier specialty roasters, competition coffee, and brands where packaging failure is not an option. It is often used for high-value, small-batch microlots.

Your roast profile is a masterpiece of time, temperature, and craft. Don't entrust its final act to inferior packaging. Choose The Vault Series—where the absolute barrier of aluminum foil, reinforced by the armor of nylon, delivers your coffee's flavor with laboratory precision. Because the last step of your process should be the first step of your customer's perfect cup.

The Vault Series. Flavor, Preserved Without Compromise.