x 14½- to 16-ounce can tomatoes

Canned tomatoes are the preserved fruit of Solanum lycopersicum processed and packaged in metal containers, typically without significant additives beyond salt and sometimes citric acid. A standard can contains approximately 14.5 to 16 ounces (410–455 grams) of tomatoes in their own juices or a light tomato sauce. Canned tomatoes may be whole, diced, crushed, or puréed, depending on processing method. The canning process heats tomatoes to sterilization temperatures, which breaks down cell walls and concentrates lycopene content, making it more bioavailable than in fresh tomatoes.

Canned tomatoes are produced year-round from tomatoes harvested at peak ripeness during summer and early autumn months, then processed and sealed immediately to preserve quality. Major producing regions include California (which supplies the majority of U.S. canned tomatoes), Italy, Spain, and other Mediterranean areas. The standardized can size emerged in the mid-20th century as a convenient unit for both retail and institutional cooking.

Canned tomatoes form the foundation of countless dishes across Italian, Spanish, Latin American, and other global cuisines. They are essential in sauces (marinara, salsa, arrabbiata), soups (tomato bisque, minestrone), stews, curries, and braises. The standardized volume makes them reliable for recipe scaling in both home and professional kitchens. Whole canned tomatoes can be hand-crushed during cooking for rustic texture, while diced varieties integrate seamlessly into salsas and relishes. Their year-round availability and long shelf life make them indispensable when fresh tomatoes are unavailable or impractical, and their concentrated flavor often surpasses that of mediocre fresh tomatoes.