Can You Freeze Diced Tomatoes (Canned)?

Diced tomatoes freeze reasonably well (3 months), though the individual pieces can soften further from their already-canned texture during the freeze-thaw process — a minor consideration for a dish headed into a sauce or stew regardless, but worth knowing if the distinct diced texture matters for a specific use. Their 5-7 day opened fridge window, shared with tomato sauce and paste, reflects the same natural acidity that gives canned tomato products a bit more resistance to spoilage than a neutral-pH liquid.

Freezing an opened can as-is, liquid and pieces together in a sealed container, works better than trying to drain and freeze the tomato pieces separately — the surrounding liquid actually helps cushion the pieces somewhat from ice-crystal damage, and most recipes calling for canned diced tomatoes want that liquid included anyway.

Fire-roasted or Italian-seasoned diced tomatoes freeze exactly the same as the plain version — the added char flavor or herbs don't change how the tomato pieces or liquid respond to freezing, so there's no need to treat a flavored can any more cautiously than a standard one. A can specifically labeled "no salt added" doesn't spoil any faster once opened than a regular salted can — the small amount of salt in a standard can isn't concentrated enough to meaningfully affect either its opened fridge life or how it holds up through freezing, so the two versions can be treated identically for storage purposes.

See Diced Tomatoes (Canned)'s full storage & shelf-life guide →