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WTR (Water Vapor Transmission Rate)  

Keep moisture out, preserve quality

WTR stands for Water Vapor Transmission Rate. This value tells you exactly how many grams of moisture pass through the material per square meter within 24 hours. For you, this can mean the difference between a crispy snack and a stale product. A low WTR value means strong protection that keeps your product dry.

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Why proper protection matters
 

Moisture is the enemy of taste, aroma and texture. Products such as coffee beans, supplements and dried fruit lose their quality once moisture enters the packaging. With the right barrier protection, you prevent spoilage, extend shelf life and guarantee a premium experience for your customer.

 

Our expertise, your certainty
 

With PouchDirect, you choose reliability. With more than 15 years of experience and 10,000 satisfied customers, we know exactly what kind of protection your product needs. We supply high-quality stand-up pouches that meet the strictest requirements without compromising on protection. This helps your product stand out on the shelf while contributing to a cleaner planet.

For example, our 100% recyclable stand-up pouches offer excellent moisture protection.

Make the smart choice
 

  • Compare our different material options in the webshop.
  • Order free samples and test the WTR value with your own product.
  • Ask our packaging experts for tailored advice.

    With a stock of 3 million pouches and more than 600 products, you will always find the right packaging solution with us. Order before 3:00 PM on working days and we ship your order the same day.

✔ Free shipping from €500

✔ Ordered before 3:00 PM, shipped the same day

✔ Largest stock in Europe

Conclusion

A good WTR value is not just a technical detail. It is the foundation for a strong, reliable and shelf-stable product. The better your packaging keeps moisture out, the longer taste, aroma, texture and quality are preserved. At PouchDirect, you will find stand-up pouches that protect your product, present it professionally and support your sustainability goals.

Want to be sure which pouch works best for your product? Order free samples or ask our packaging experts for advice.

FAQ

FAQ

What does WTR mean in packaging?

WTR stands for Water Vapor Transmission Rate. It shows how much water vapor passes through the packaging material within 24 hours. The lower the WTR value, the better the packaging keeps moisture out.

Why is a low WTR value important?

A low WTR value helps preserve taste, aroma, texture and quality for longer. This is especially important for products that are sensitive to moisture.

For which products is WTR important?

WTR is important for products where moisture affects quality, shelf life or ease of use. Think of snacks that need to stay crispy, powders that should not clump and products such as coffee, tea or herbs where aroma is important.

Are recyclable stand-up pouches also moisture-resistant?

Yes, they can be. The level of protection depends on the material and structure of the pouch. PouchDirect also offers recyclable stand-up pouches with strong moisture protection.

How do I choose the right pouch with good WTR protection?

Look at your product, desired shelf life and storage conditions. Not sure which pouch is best? Order free samples or ask our packaging experts for advice.