Thermoformers, Tray Sealers and MAP Equipment
Machines that form or load packages, evacuate or gas-flush them and seal lidding films for vacuum, tray and modified-atmosphere meat products.
Thermoformers create pockets from rollstock, tray sealers close preformed trays and MAP systems evacuate or flush package headspace before sealing. The machine route must match the product and film structure.
Forming webs, trays, lidding films, adhesives and inks must be suitable for the food and process temperature. Barrier properties and seal layers are material-specific.
Vacuum level, gas mix, gas-to-product ratio and residual oxygen depend on machine settings, product load and package geometry. The supplied gas does not remain unchanged throughout storage.
Seal temperature, pressure, dwell time, tooling and product contamination determine seal quality. A strong-looking seal can still contain channels or wrinkles.
Conveyors, tooling, vacuum lines, gas nozzles and trim systems can spread product residue. Cleaning, film tracking and worn seal components require routine control.
Check seal integrity, package atmosphere where relevant, coding and material identity. Shelf life must be supported for the complete product-package-temperature system.
References
- https://www.fda.gov/food/food-ingredients-packaging/packaging-food-contact-substances-fcs
- https://www.fda.gov/food/fda-food-code/food-code-2022