This 12oz kraft bag features a block bottom, zipper with pull tab, and one way valve making it perfect for packaging whole coffee beans, loose-leaf teas, and more. The durable block bottom combined with the zipper and pull tab make for quick filling and easy re-sealing. Carbon Dioxide is released from coffee, making the one way valve critical in preventing the bags from bursting while keeping your beans fresher, longer!

 Bag Specifications:

• 5″ x 3-1/8″ x 7-7/8″ (WxDxH)
• 12oz / 340g (based on coffee beans)
• Thickness: 5.4 mil
• Materials: KRAFT / PET/ ALU / LLDPE
• zipper with pull tab
• One Way Valve
• Requires heat seal after filling