It\u2019s common to notice ground beef turning gray instead of the usual bright red. While this change can raise concerns, gray ground beef isn\u2019t necessarily bad or unsafe.<\/p>\n
The red color comes from myoglobin reacting with oxygen on the meat\u2019s surface. Inside the package, where oxygen doesn\u2019t reach, the meat often stays gray or brown. This natural lack of oxygen causes the gray hue and isn\u2019t a sign of spoilage on its own.<\/p>\n
However, if the exterior of the meat turns gray or most of it loses its red color, this may indicate spoilage or that the beef has been stored too long. The red color fades due to oxidation, and bacteria may start growing.<\/p>\n