Bloomin lid controlled atmosphere package

摘要

A package that provides for the control of the atmosphere wherein its hermetically sealed walls, allowing fresh meat and poultry products to be held first in an atmosphere that retards the growth of bacteria until it is placed for sale in a retail display case. The package provides a dual layer lidding film with the inner layer being oxygen permeable and the outer layer being oxygen impermeable. At the time of display, the outer layer is removed so that oxygen can enter the package to activate the myoglobin in the meat to cause the meat to bloom to its usual red color. The lidding in part is formed by facing layers of easy peel polyethylene, LDPE treated with polybutylene.