Why We Use Wipf Valves: Performance, Protection, and Planet-Minded Packaging

When crafting exceptional coffee, preserving its integrity from roast to cup is crucial. Every detail in the packaging process contributes to that mission, but one of the most critical, and often overlooked elements lies within the degassing valve.

After extensive research, rigorous testing, and a commitment to quality, we are proud to have partnered with Wipf AG valves, an industry benchmark for over 120 years, celebrated for its engineering precision, uncompromising airtight standards, and dedication to sustainable innovation.

Here’s why Wipf valves elevate every bag of coffee we produce:

1. Precision-Crafted with Tight Tolerances

Wipf valves are manufactured with extremely tight tolerances, meaning every part is engineered to exact specifications. This ensures the valve functions perfectly on every bag—no leaks, no inconsistencies. When freshness is on the line, there’s no room for error, and Wipf delivers reliability at a microscopic level.

2. Dual-Function Membrane Technology

These valves use a one-way intelligent membrane system, engineered to:

• Release CO₂: Freshly roasted coffee off-gasses for days after production. Without a proper valve, pressure builds up, risking bloated or burst bags.

• Block external pollutants: While gas is allowed to escape, no outside oxygen, moisture, or contaminants can enter, keeping your coffee’s aroma and flavor perfectly intact.

This one-way membrane system is designed for precision, not guesswork.

3. Altitude-Proof: Vacuum-Tested for Stability

Shipping from different elevations or through mountainous regions can destabilize improperly sealed bags. Wipf valves are vacuum-tested to guarantee that changes in altitude don’t compromise product quality. No bulging. No panel separation. Just sealed-in freshness!

4. Batch-Level Traceability & Long Shelf Life

Each Wipf valve box comes with a printed batch number and production date, offering full traceability—an essential feature for food safety protocols and audit-ready operations. While Wipf valves are guaranteed for 3 years, they’ve been shown to perform reliably for up to 5 years or more, depending on storage conditions.

5. Unmatched Sustainability Standards

Sustainability isn’t a buzzword at Wipf, it’s a core priority. Here's what sets them apart:

• Certified recyclable valve options, compliant with both EU and US regulations—a unique distinction among valve producers.

• Compatible with mono-material films like MDOPE, Ecovio, PLA, BioPBS, and other biopolymer-based structures.

• Unlike other valve brands, Wipf doesn’t use rubber membranes, which can disqualify a package from being fully recyclable or compostable. Additionally, over time, rubber membranes are known to harden, crack, or lose elasticity, particularly when exposed to heat, light, oxygen, or humidity, which compromises the valve’s ability to open and close properly.
  

• Wipf offers both ultrasonic and heat-seal valve options to ensure the pouch is always attractive and properly produced, regardless of the material choice.

Whether you’re packaging whole bean or ground coffee, Wipf valves offer options that support your brand’s sustainability goals without compromising performance.

6. Flexible For Flexibles

No matter what type of bag or rollstock you use, whether that be traditional multi-layer structures or cutting-edge recyclable or compostable films, Wipf valves are designed to seal seamlessly. Their compatibility ensures you can choose the right material for your brand without sacrificing function. 

In Summary: Wipf Valves are a Smart Investment in Freshness and the Future

When you care about your coffee, the little things matter. Wipf valves might be small, but they carry a big load, ensuring every bag you ship performs as beautifully as the roast inside.

With PCKG + Wipf, you’re choosing:

• Best-in-class degassing performance

• Unmatched manufacturing quality and traceability

• Market-leading sustainable options

• Reliable compatibility with modern films and bag types

Great coffee deserves great protection, which is why PCKG is committed to elevating our packaging with a great partner like Wipf.

Have questions about how Wipf valves can elevate your packaging? Contact our team or explore our lineup of sustainable, valve-ready bags, or to learn how you can purchase your own valves compatible with your current film and machinery. Let’s build a fresher, smarter, more sustainable future for coffee, together.