Expendables 2 came out today. The movie about old action stars like Bruce Willis (age 57), Sylvester Stallone (age 66), Arnold Schwarzenegger (age 65) and Chuck Norris (72!) shooting down bad guys got us thinking. Just how long can old meat be used before it’s time to cast it off completely? And what’s the best way to store it? You can assume a piece of beef that was in its prime in the early ’80s wouldn’t be edible today, but what are the timeline and guidelines for safe storage? Get our meat preservation tips after the jump.