Tomato
Solanum lycopersicum · plum tomato (Roma variety) · cherry tomato · beefsteak tomato
Botanically a fruit, culinarily a vegetable, the tomato is one of the most flavour-complex ingredients in the kitchen. At peak ripeness, a good tomato contains a balanced interplay of sweetness, acidity and umami (from glutamic acid) that few other ingredients can match. The flavour chemistry is volatile and temperature-sensitive: tomatoes stored below 12°C lose flavour compounds they cannot recover, which is why a refrigerated tomato is a diminished one.
Sweet, acidic, with significant umami (glutamic acid). The balance shifts with ripeness: underripe tomatoes are acidic and grassy; peak-ripe tomatoes are sweet and complex; overripe tomatoes lean sweet and jammy with less acidity. Cooked tomatoes become deeper and sweeter as water evaporates.
Soft and yielding when ripe with a gel around the seeds. The skin provides textural contrast raw but becomes papery when cooked. The flesh breaks down completely in sauces given enough time.
Store at room temperature, away from direct sunlight. Never refrigerate below 12°C — cold destroys the volatile aromatic compounds irreversibly. Use within 2–4 days of peak ripeness. Overripe tomatoes are ideal for sauces.
Wash before use. To peel: score an X in the base, blanch in boiling water for 20 seconds, then plunge into ice water — the skin slips off. Remove seeds and gel to reduce moisture in sauces and salads. For roasting, halve and cook cut-side up at 180°C for 45–60 minutes.