Final answer:
The statement is true and relates to food preservation techniques where vacuum packing and inert gases like nitrogen prevent oxidation. These methods ensure better flavor, color, and freshness of food products, while tightly wrapping food before freezing helps minimize freezer burn.
Step-by-step explanation:
The statement about food package film being impenetrable by oxygen, and that food is vacuum packed with the possibility of containing gases such as carbon dioxide and nitrogen, is True. This is because these practices are commonly employed in food preservation to prolong the freshness and prevent spoilage. Vacuum packing removes air, and often an inert gas like nitrogen is used to fill the space, providing an atmosphere that minimizes oxidation. Foods such as cheese and meat benefit significantly from this preservation technique as they cannot oxidize in a pure nitrogen atmosphere, which helps retain better flavor and color. Products like soda and beer are sealed with high pressure carbon dioxide gas to allow more of the gas to dissolve in the liquid, maintaining their fizzy quality. In order to prevent freezer burn during freezing, wrapping food tightly minimizes air exposure, thus reducing the chances of ice crystals forming on the surface of the food.