3-6 years past the best by date. 2. Cantuna or Sammon? 3-6 years past the best by date. Can Chicken? 3-6 years past the best by date. 4. Can Chili? 3-6 years past the best by date. 5. Can Vegetables? 3-6 years past the best by date. 6. Can Soups and Stews? You guessed it.