Preserving & Canning Tomatoes

You preserve tomatoes by canning, drying, or freezing them. Water-bath canning suits acidified whole or crushed tomatoes, pressure canning suits low-acid mixes, and freezing is the fastest no-cook option.

How do you preserve tomatoes?

MethodBest forKeeps for
Water-bath canningAcidified whole or crushed tomatoes12–18 months
Pressure canningLow-acid mixes (with meat or vegetables)12–18 months
FreezingQuick, no-cook storage8–12 months
DryingConcentrated flavor, small space6–12 months
Fresh storageShort-term counter use1–2 weeks

Canning (2)

Cultivar profile (6)

Seed starting (1)

Tomato Preserving FAQs

Do you need to add acid when canning tomatoes?

Yes. Add bottled lemon juice or citric acid to canned tomatoes, because modern tomatoes are borderline low-acid and acid keeps water-bath canning safe.

Water bath or pressure canning for tomatoes?

Use water-bath canning for acidified plain tomatoes and pressure canning for low-acid mixes with meat, vegetables, or no added acid.

Can you freeze tomatoes whole?

Yes. Freeze washed, dried whole tomatoes on a tray, then bag them. The skins slip off easily after thawing for sauces and soups.

How long do home-canned tomatoes last?

Home-canned tomatoes keep their best quality for about 12 to 18 months when stored in a cool, dark place.

Free Tomato Tools

Browse all 25 free tomato tools & resources.

Explore more tomato guides: Recipes · Growing · Varieties · Nutrition & Health · When to Plant · Problems & Solutions · Reviews & Gear · History & Culture