Someone found a jar of
honey in a King Tut's tomb, it was 3000 years old, and still good.
Just remember the rules of food storage, avoid oxygen, moisture and light.
Properly stored food can last for decades.
Another food is pickles. When they pulled the Hunley (civil war submarine) up from the ocean, they found a container of pickles that was still sealed. One of the archaeologists ate one and found that it still tasted good. Vinegar is a very good preservative.