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Tomatoes
🥬Produce

Tomatoes

A kitchen essential in fresh and canned forms. In-season summer tomatoes are incomparable raw. The rest of the year, canned tomatoes are often better than fresh — they're picked ripe and processed immediately. San Marzano (from Italy) is the gold standard for canned.

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Where to Find It

Fresh: produce section, sometimes on the vine or in plastic clamshells. Canned: canned vegetables aisle — look for whole peeled, crushed, diced, and paste. Sun-dried tomatoes are often in the pasta or specialty aisle.

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How to Pick a Good One

Fresh: heavy for their size, fragrant at the stem end, slightly soft but not mushy. Bright, uniform color. Roma/plum tomatoes are best for cooking. Beefsteak for slicing. Cherry/grape for snacking and salads. Canned: whole peeled San Marzano (DOP label) for sauces.

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How to Store

Fresh ripe: counter at room temp, stem-side down. NEVER refrigerate unless cut or very ripe and you need a few more days. The fridge kills the flavor and texture. Unripe: counter to ripen. Canned opened: transfer to a non-metal container, refrigerate, use in 5-7 days.

Shelf life: Fresh on counter: 3-5 days. Fridge (if necessary): 1-2 weeks but lower quality. Canned unopened: 18-24 months. Opened: 5-7 days.

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Prepping Tips

To peel: score an X on the bottom, blanch in boiling water 30 seconds, then ice bath — skin slides right off. For sauces, crush canned whole tomatoes by hand (most satisfying) or with a potato masher. Remove the hard core near the stem before using fresh tomatoes.

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Substitutions

Canned tomatoes (for fresh in cooking)

One 14oz can per 1.5 lbs fresh

Often better than out-of-season fresh tomatoes. Consistent flavor year-round.

Tomato paste + water

2 tbsp paste + 1/2 cup water per cup of crushed tomatoes

Good for sauces when you're short on canned tomatoes.

Roasted red peppers

Equal amount

In sauces and soups. Different flavor but similar body and sweetness.

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Common Uses

Pasta sauce and marinaraSalads and bruschettaSalsaSoups (tomato soup, gazpacho)Sandwiches and burgers

Frequently Asked Questions

Should you refrigerate tomatoes?

No — cold temperatures break down the cell structure and deactivate flavor compounds. Store on the counter, stem-side down. Only refrigerate if they're fully ripe and you need 2-3 more days, or if they're already cut.

Are canned tomatoes as healthy as fresh?

Yes, and in some ways better. Cooking and canning actually increases the bioavailability of lycopene (a key antioxidant). Canned tomatoes are picked at peak ripeness, so nutrient content is often higher than out-of-season fresh tomatoes.

What are San Marzano tomatoes?

A variety of plum tomato grown in the volcanic soil near Mount Vesuvius, Italy. They're sweeter, less acidic, and have fewer seeds than regular tomatoes. Look for the DOP (protected origin) label for authentic ones. They're the standard for Neapolitan pizza sauce.

Nutrition

Per 1 medium tomato (148g)

Calories22
Protein1.1g
Carbs4.8g
Fat0.2g

Key Nutrients

Lycopene (powerful antioxidant, more in cooked)Vitamin CPotassiumVitamin KFolate

Quick Facts

Store SectionProduce
Shelf LifeFresh on counter: 3-5 days
Substitutions3 options