The Best Way to Preserve Tomatoes
The best way to preserve tomatoes depends on your goal: water-bath can them (acidified) for shelf-stable jars, freeze them whole or as sauce for the easiest option, or dehydrate them for intense, space-saving dried tomatoes. Canning needs added acid for safety; freezing and drying do not.
A glut of ripe tomatoes is a wonderful problem, and there is no single "best" way to preserve them, only the best way for how you plan to use them. Here is how the four main methods compare, so you can pick the right one (or combine them).
The four methods at a glance
| Method | Best for | Effort | Keeps |
|---|---|---|---|
| Water-bath canning | Shelf-stable jars, sauce, whole | Higher (acidify + process) | ~1 year |
| Freezing | Easiest; sauce or whole | Lowest | Months |
| Dehydrating | Intense flavour, space-saving | Medium (slow) | Months+ (airtight) |
| Pressure canning | Low-acid tomato mixes | Highest | ~1 year |
Canning: shelf-stable jars
If you want jars in the pantry, canning is the classic answer. Tomatoes are high-acid enough only with added acid, so follow a tested recipe and add bottled lemon juice or citric acid to every jar. A food mill makes smooth sauce fast; see the sauce method and process in a water-bath canner.
Freezing: the easy option
Freezing is the most forgiving method, no acidification, no processing. Freeze tomatoes whole (the skins slip off when thawed), chopped, or as cooked sauce in portions. Vacuum-sealing before freezing prevents freezer burn and saves space; see the best vacuum sealers and what freezes well.
Dehydrating: intense and compact
Dried tomatoes pack huge flavour into a tiny space, brilliant for pasta, sauces and antipasti. Paste-type tomatoes dry fastest. See how to dehydrate tomatoes and the best dehydrators. Store them dry, never in oil at room temperature.
Which should you choose?
Want pantry jars and enjoy the process? Can them (acidified). Want the least effort? Freeze them. Want concentrated flavour and space savings? Dry them. Many people do all three from one big harvest. Whatever you choose, follow tested guidance for canning, see is home canning safe?
Frequently asked questions
What is the easiest way to preserve tomatoes?
Freezing. You can freeze tomatoes whole, chopped, or as cooked sauce with no special equipment or acidification, just cool and freeze. It is the most forgiving method for beginners.
Do canned tomatoes need added acid?
Yes. Tomatoes sit near the acid borderline, so tested recipes require added bottled lemon juice or citric acid for safe water-bath canning, regardless of how ripe they taste.
Should I preserve tomatoes as sauce or whole?
Either. Whole or crushed keeps flexibility; sauce saves space and prep later. A food mill makes smooth, skin-and-seed-free sauce quickly for canning or freezing.