Black vacuum seal bags are made from a Nylon/LLDPE combination capable of holding a long-term vacuum. The black opaque bags block out light from degrading food quality. Commonly used forwrapping cheeses, butters, and other dairy products.
The high nylon content provides extra puncture resistance and strength when used in demanding environments. The materials are FDA approved for direct food contact.
We have many customers using black vacuum bags with a nitrogen flush to preserve flower, herbs, and many other degradable products. The high barrier and low light are perfect for preserving smell, moisture, and quality.