09/01/2026
That viral Costco ground beef post is making people panic — and it shouldn't be.
The gray/brown meat in the middle isn't "bad." It's not spoiled. It's not Costco mixing old meat with new meat. It's just science.
Ground beef turns red when oxygen hits it. The outside of the package gets air contact — so it stays bright red. The inside? No oxygen, so it oxidizes to gray/brown. Every single package of ground beef does this. Every time.
The actual signs of bad ground beef:
— It smells off (sour, ammonia-like, or just wrong)
— Slimy texture that doesn't go away
— Gray/green on the OUTSIDE, not just inside
If your beef passes the smell test and the texture is normal, it's fine. Cook it to 160°F and eat well.
Don't let a viral post waste your groceries.
