Bacon skin packaging in thermoforming in rigid film The main function of skin packaging is to extend product’s shelf life but it also adds features that provide additional values such as self liquid retention to prevent product’s exudation. 1454_1.jpg _nB_JTLwa0c ‹ › Prev Next TFS 500 Hygienic thermoforming machine for flexible or rigid film with modified atmosphere (MAP) and vacuum options. Medium-high performance level.