x 28-ounce can diced tomatoes

Diced tomatoes are ripe tomatoes (Solanum lycopersicum) that have been mechanically cut into small cubes and preserved in cans, typically with added tomato juice or puree to maintain moisture and prevent settling. The 28-ounce can represents a standard North American portion size, roughly equivalent to three medium fresh tomatoes. Canned diced tomatoes are processed shortly after harvest to preserve freshness, acidity, and nutritional content. Most commercial varieties are made from paste or roma tomatoes, which have fewer seeds and firmer flesh than beefsteak varieties, making them ideal for processing and maintaining distinct texture after cooking.

Depending on the brand and product line, canned diced tomatoes may contain added salt, calcium chloride (a firming agent), citric acid, or spices. Some varieties are labeled "fire-roasted" or "Italian-style," indicating additional processing or seasoning. The texture of canned diced tomatoes differs from fresh: the cooking process softens the flesh and the packing liquid becomes part of the ingredient in the final dish.

Canned diced tomatoes are a foundational ingredient in countless dishes across Mediterranean, Latin American, and Asian cuisines. They are essential in soups (minestrone, gazpacho), stews, curries, and braises where their acidity balances richness and their liquid base builds sauce. Diced tomatoes are central to Italian pasta sauces (marinara, arrabbiata), Mexican salsas and chilies, and Indian curries. Their convenience and year-round availability make them invaluable in home cooking. The distinct cube shape allows tomatoes to remain visible and textural in the finished dish, distinguishing this product from tomato sauce or puree. Drained diced tomatoes can be used in cold preparations like salsa or pico de gallo, while the liquid is incorporated into warm applications for flavor and body.