Peas
The first commercially available frozen vegetable was spinach or peas.
yes
The first vegetable to be canned in the world was green peas. This innovation in food preservation began in the early 19th century, with the first successful canning process developed by Nicolas Appert in France around 1809. Canned peas became popular due to their convenience and long shelf life, paving the way for the widespread canning of various other vegetables and foods.
yes u can
No, unless it is commercially packaged (i.e. canned).
Commercially canned corn should last up to three years.
3.0
Lettuce
lettuce
Lettuce
I would say fresh vegetables, but it depends on the source / nature of the vegetable and other canned items
Vegetable soup can be homemade, with fresh, frozen, or canned vegetables. Or, it can be bought pre-made in cans at a grocery store.