Original sentence: After 1938, it was used for the new C-ration, a canned combat ration with several menu items.Instead, when not used as a serving tray for company-size or larger units, the mess kit was used to re-heat or re-constitute pre-measured servings of canned or dried United States military ration
Edited sentence: After 1938, it was used for the new C-ration, a canned combat ration with several menu precooked or dried food items.Instead, when not used as a serving tray for company-size or larger units, the mess kit was used to re-heat pre-measured servings of the canned Reserve Ration