Ingredients
Heirloom Tomato — Varieties

Varieties

A dozen heirloom tomato varieties showing the full spectrum of colors, shapes, and sizes.

Displaying multiple distinct cultivars side by side on one surface immediately communicates that heirloom tomatoes are not a single type but a diverse family of open-pollinated varieties.

Produce

Heirloom Tomato

Open-pollinated tomato varieties prized for deep flavor and unusual colors.

Heirloom tomatoes are traditional open-pollinated varieties grown for flavor rather than shipping durability, coming in colors from deep purple to green-striped and yellow. They are juicy, complex and often less acidic, ideal eaten raw in salads, sliced with salt and olive oil, or in fresh sauces. Their irregular shapes and thin skins make them best for immediate use.

Heirloom tomatoes are open-pollinated varieties that have been grown from saved seed for at least 40–50 years, passed down through families or preserved by seed-saving communities. Unlike F1 hybrids, heirlooms breed true from seed, meaning each generation maintains the distinct characteristics of its parent plant. The term carries no legal weight—it describes a philosophy of cultivation rather than a regulated category. Many heirlooms predate industrial agriculture: Cherokee Purple traces to pre-1890 Tennessee, Costoluto Genovese is a classic Italian variety, and Mortgage Lifter originated in 1930s Appalachia.

Heirlooms were largely abandoned by commercial growers because their thin skins and fragile flesh bruise easily, ship poorly, and spoil quickly—all the opposite of what a grocery supply chain demands. In exchange for that difficulty, you get dramatically superior flavor: lower acidity than commercial varieties, higher perceived sweetness, and complex taste profiles that range from smoky and rich (Cherokee Purple) to bright and tart (Green Zebra) to intensely salty (Black Krim). These tomatoes were bred for the table, not for the truck bed.

Because heirlooms lack the selective breeding improvements that gave commercial tomatoes thick skins and uniform shape, they require more careful handling. They crack at the crown if stored improperly, lose flavor irreversibly if chilled, and degrade within days of peak ripeness. This is not a flaw—it is the cost of exceptional quality. The payoff is a tomato that tastes like something rather than a mealy, pink-tinged vehicle for salt.

Measured in
piece
Storage
Pantry

Types & varieties

Brandywine

Pink-red, large beefsteak; rich, intense flavor; potato-leaf foliage; most recognized heirloom

Cherokee Purple

Dusky rose-brown, medium-large; rich, sweet, smoky; Tennessee origin, pre-1890

Green Zebra

Green with dark stripes when ripe; bright, tart-sweet; holds shape well when cooked

Black Krim

Dark red-brown, medium; intense, slightly salty, smoky; from Crimean peninsula

Costoluto Genovese

Deeply ribbed red; meaty; good for sauce and roasting; classic Italian variety

Yellow Mortgage Lifter

Large yellow-orange; mild, low acid, meaty; 1930s Appalachian variety

Big Rainbow

Bicolor yellow with red streaks; sweet, mild; large beefsteak type

Aunt Ruby's German Green

Green when ripe; spicy, sweet, fruity; large, prone to cracking

Hillbilly

Bicolor yellow with red marbling; sweet, mild; very large, from West Virginia

Japanese Black Trifele

Pear-shaped, dark mahogany; complex, sweet; holds shape better than most when cooked

Oxheart Pink

Conical, pointed base; meaty, few seeds; good for sauce and canning

White Wonder

Creamy white; very mild, low acid; unusual and rare

Buying and Selecting

Not every tomato sold as heirloom is worth the premium. Supermarket heirlooms are often underripe (picked green for shipping), have been chilled during transit, or are mislabeled hybrids. Smell is your best indicator: a ripe heirloom emits a distinct fragrance at the stem scar. Press gently near the stem—slight give means readiness. Avoid any with soft spots, heavy cracking at the crown, or mushy patches. For cooking applications that require structure (slicing, stuffing), choose firmer varieties like Japanese Black Trifele or Oxheart Pink. For raw eating where you want maximum juice and burst, choose fully ripe Brandywine or Cherokee Purple.

  • Smell the stem scar before buying—it should be fragrant
  • Avoid any tomato that has been stored cold or shows condensation inside packaging
  • Choose by intended use: firm types for cooking, soft types for raw eating
  • Look for vivid color consistent with the variety (green zebras should have yellow stripes, not pale green)
  • Blemishes and catfacing (rough scarring near the stem) are cosmetic and do not affect flavor

Ripening and Maturation

Green heirloom varieties (Green Zebra, Aunt Ruby's German Green) ripen to full flavor while still green—this is varietal, not a sign of immaturity. Test for ripeness by feel (slight softness near the stem) and scent rather than color alone. If you buy slightly underripe heirlooms, ripen them stem-side down on a room-temperature counter away from direct sunlight. A paper bag speeds the process by trapping ethylene gas. Never rush ripeness by refrigeration.

  • Green varieties are ripe at green—test by feel and smell, not color
  • Ripen stem-side down on the counter, never in the refrigerator
  • Place in a paper bag to accelerate ripening with trapped ethylene
  • Fully ripe heirlooms smell intensely aromatic at the stem scar
  • Underripe heirlooms will not develop the same complexity even if they soften

Common uses

Sliced raw for summer salads with minimal dressingCaprese salad with fresh mozzarella and basilBruschetta and crostini toppingsClassic tomato sandwich on white bread with mayo and saltGazpacho and other uncooked soupsFresh pico de gallo and salsa crudaRoasted or charred for pasta sauce and pizzaSlow-roasted halves with olive oil and garlicBLT sandwiches and hamburgersNiçoise saladShakshuka and baked egg dishesPreserved whole or as jam/marmalade

Tips & pitfalls

  • Never refrigerate: cold below 55°F destroys cell walls and mutes flavor irreversibly
  • Store stem-side down to prevent cracking at the crown
  • Ripen on a counter; a ripe heirloom smells fragrant at the stem scar
  • Handle gently—press gently with thumb at stem; slight give indicates ripeness
  • Salt sliced tomatoes 5–10 minutes before serving to draw out juices and intensify flavor
  • Let come to full room temperature (at least 30 minutes) before eating raw
  • Cut with a serrated knife or very sharp smooth blade to minimize crushing
  • For sauce, cook low and slow to concentrate flavor without losing brightness
  • Green heirloom varieties (Zebra, German Green) are ripe—test by feel and scent, not color
  • Wash just before using; excess moisture promotes spoilage
  • Remove the core with a small sharp cut, angling the knife inward—cutting minimizes waste more reliably than scooping
  • Do not buy from refrigerated display cases—damage is already done even if the tomato looks fine

Nutrition

15kcal

Energy

63 kJ · per 100 g

Where the calories come from

Protein 22%Carbs 66%Fat 13%

Protein

1g

2% DV

Carbs

3g

1% DV

Fat

0.3g

0% DV

Fiber

0.7g

3% DV

Sodium

23mg

1% DV

Notable micronutrients
Vitamin C10% DV
Folate8% DV
Niacin (B3)7% DV
Potassium5% DV
Riboflavin (B2)4% DV
Thiamin (B1)3% DV

Source · USDA FoodData Central · approx. Tomatoes, yellow, raw

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In the shops

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Good to know

Origin
Americas (Peru/Ecuador region); cultivated varieties passed down for 50+ years, many from Italy, Germany, and the American South
Season
Summer; peak harvest July through September in Northern Hemisphere
Pollination
Open-pollinated (insect or wind); seeds saved and passed down maintain variety characteristics
Color Range
Red, pink, yellow, orange, green, purple/black, white, striped, bicolor
Flavor
More complex and sweeter than commercial varieties; lower acid; varies by variety (smoky, fruity, tangy, rich)
Texture
Thinner skin, more fragile flesh, more juice and gel than hybrids; prone to cracking
Storage
Room temperature only; refrigeration destroys texture and flavor within hours
Shelf Life
3–7 days at room temperature; use within 1–2 days of peak ripeness

Substitutes

  • Vine-ripened hothouse tomatoAcceptable but less complex; look for actual scent and slight softness at the stem
  • Farmers market tomato (any variety)Often grown for flavor over shipping; may be heirloom or open-pollinated
  • Beefsteak tomatoFirmer and less flavorful; better than supermarket standard varieties

Pairs with

Fresh basilFresh mozzarella di bufalaBurrataGarlicOlive oilBalsamic vinegar (aged)AnchovyCaperCorn and fresh shell beansFeta cheeseAvocadoCilantro, lime, jalapeñoProsciutto di Parma

Also called

Heritage Tomato

Appears in these dishes

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