can tomato paste

Canned tomato paste is a concentrated tomato product made from tomatoes that have been cooked, strained to remove seeds and skins, and reduced to achieve a thick, dense consistency. The paste is typically packed in cylindrical metal containers and sterilized through heat processing to ensure shelf stability. The preparation process involves selecting ripe tomatoes, cooking them at high temperatures, passing the cooked mixture through a fine sieve to create a smooth purée, then reducing the liquid content through evaporation until the desired consistency—usually 25–30% solids—is achieved.\n\nThe resulting product has a deep red color, concentrated tomato flavor with slight sweetness and acidity, and a uniform, spreadable texture. Commercial canned tomato paste typically contains no added ingredients beyond salt, though some formulations may include citric acid as a preservative. The concentration of flavor and umami compounds makes it significantly more potent than fresh tomatoes, with approximately 3–4 pounds of fresh tomatoes yielding 1 pound of paste.

Canned tomato paste serves as a foundational flavoring agent across Mediterranean, Latin American, and global cuisines. It is used to build depth in sauces, stews, and braises—particularly in Italian ragùs, Spanish soffritos, and Latin American moles. The concentrated tomato solids thicken sauces while adding savory umami character without the excess liquid of whole tomatoes or sauce. Typical applications include pasta sauces, soups, curries, chilis, marinades, and tomato-based condiments. When using tomato paste, blooming it in oil or fat before adding other ingredients releases its flavor compounds more effectively. It should be diluted with stock or water to achieve the desired sauce consistency and is often combined with garlic, onions, and aromatics to form the flavor base of a dish.