-ounce can diced tomatoes

Diced tomatoes in canned form are ripe tomatoes that have been washed, peeled, and cut into small cubes, then processed and preserved in tomato juice or sauce within a sealed metal container. This preservation method, typically using heat treatment (retort sterilization), allows tomatoes to be stored shelf-stable for extended periods without refrigeration. Canned diced tomatoes are made from varieties bred for processing, such as Roma, San Marzano, or paste tomatoes, which have fewer seeds, thicker flesh, and higher solids content than fresh slicing varieties. The canning process preserves the lycopene content and nutritional profile while developing deeper umami notes through the cooking process.

Canned diced tomatoes are a foundational ingredient in countless cuisines, particularly in Italian, Spanish, and Latin American cooking. They are essential for soups, stews, chilis, salsas, pasta sauces, and braised dishes, where their consistent texture and concentrated flavor provide reliable depth without the labor of fresh tomato preparation. The cubed form allows for even distribution throughout dishes and reduces cooking time compared to fresh tomatoes. They are commonly used in curries, tagines, and Middle Eastern preparations, and serve as a time-saving alternative to fresh tomatoes in year-round cooking when quality fresh tomatoes are unavailable.