Fresh-Lock® Retort Zippers

A retort pouch is a flexible pouch for food that is thermally sterilized in a pressure vessel. Retort pouches are shelf stable and are typically used for food otherwise packaged in cans or jars. Fresh-Lock® polypropylene zippers are designed to withstand the high temperatures of the retort process.

Advantages over cans and jars:

• Longer shelf life
• Improved food flavor
• Food is more nutritious
• High surface to volume ratio
• Heat penetrates quickly
• Retort time reduced 30-50%
• Less energy used during production
• Food near wall is not overcooked
• Lighter weight
• Reduced storage space
• One truckload of pouches = 25 truckloads of cans
• Freight savings on receipt of empty cans up to 85%
• Safer to use
• Larger surface for graphics

Retort Zipper Features:

• Withstands high temperatures demanded by retort process
• General styles available
• Top-fill styles available
• Bottom-fill styles available