Sour, rotten, or ammonia-like smell
Slimy or sticky texture
Gray, green, or brown discoloration throughout
Mold or fuzzy spots
Package is swollen, leaking, or damaged
Excessive liquid in the package
Meat feels tacky even after rinsing
Off taste after cooking
Past the use-by or expiration date
Stored improperly or left out too long
Unusual dryness with a rancid smell
Packaging has a broken seal
Surface looks dull and unappetizing instead of fresh red on the outside and bright red inside
Signs of freezer burn if frozen for too long
Any doubt about freshness or safety