Using carbon monoxide in meat packaging helps keep beef looking red and fresh for two weeks by preserving its natural ability to hold oxygen and stay colorful—unlike regular plastic wrap or high-oxygen packaging, which make the meat turn brown faster, especially if the cow was older.

Assessment Explanation

The claim describes a direct, experimentally testable effect of packaging methods on biochemical meat properties under controlled storage. The use of definitive verbs like 'preserves' and 'causes' is justified because CO-MAP's mechanism (binding to myoglobin to stabilize red color and reduce oxidation) is well-established in food science literature, and MRA/OCR are standard, quantifiable metrics in meat quality studies. The inclusion of age as a modifier is biologically plausible and commonly studied. No overstatement is present; the claim is specific to bovine Psoas major, a defined muscle, and a fixed duration.