Oil labelling in India follows FSSAI regulations, but many terms are used loosely in practice. Understanding what each term means — and what oversight exists — helps you make better decisions.
Cold-Pressed
What it means technically: Oil extracted by mechanical pressing at temperatures below 50°C (some interpretations use 27°C as the standard, borrowed from EU olive oil regulations). No external heat source is used during extraction.
What it means in practice: Variable. Some producers are strict; others use the term for any non-solvent-extracted oil, including screw presses that generate significant heat.
FSSAI status: India's FSSAI regulations do not have a specific temperature standard for "cold-pressed" labelling. The term is largely self-certified.
Red flags: If a product is both "cold-pressed" and unusually cheap, the cost economics often don't add up. Genuine cold pressing has lower yield and higher production cost than solvent extraction or hot-pressed alternatives.
Wood-Pressed / Chekku / Ghani
What it means technically: Oil extracted using a traditional wooden press (ghani) driven by animal or motor. The slow rotation speed generates minimal heat.
What it means in practice: Relatively consistent. The physical constraint of a wooden press running at 8–12 RPM genuinely produces cool temperatures. However, some producers call any slow-screw-press oil "ghani-pressed" to claim the traditional connotation.
Advantage: The wood-pressing process tends to produce more aromatic oil than metal press equivalents, particularly for sesame and groundnut. The extended contact of seed with wood at low speed appears to extract different aromatic compound ratios.
Virgin
What it means technically: In global olive oil standards, "virgin" means mechanically extracted, without refining, with specific limits on free fatty acid content. For other oils, "virgin" has no standardised meaning in Indian regulations.
What it means in practice: For coconut oil, "virgin" generally means cold-pressed from fresh coconut (not copra) — the standard is clearer here because the coconut oil industry has borrowed from olive oil terminology. For other oils, "virgin" may mean simply "unrefined" without a specific process claim.
Refined
What it means: A multi-step process that transforms crude vegetable oil (often solvent-extracted) into a neutral, shelf-stable cooking oil:
- Degumming — removing phospholipids
- Neutralisation — removing free fatty acids with alkali
- Bleaching — removing pigments with bleaching clay
- Deodorisation — removing volatile compounds with steam at 200–250°C
The result: oil that is visually uniform, odourless, tasteless, and shelf-stable for 1–2 years. Also: oil from which most heat-sensitive nutrients, all natural aromas, and most minor compounds have been removed.
Refined oils are not "bad" — they're stable, affordable, and appropriate for high-heat cooking. They are not nutritionally comparable to cold-pressed alternatives.
Solvent-Extracted
What it means: The seed or nut is mixed with a chemical solvent (typically hexane) to dissolve and extract the oil. The solvent is then evaporated off. This method extracts more oil from the same material than pressing.
Why it matters: The crude oil from solvent extraction requires full refining (the process above) before it's suitable for consumption. Traces of hexane may remain in the final product at low levels within regulatory limits. Nutritionally, solvent-extracted refined oil is at the lowest quality tier of any cooking oil.
Expeller-Pressed
What it means: Mechanically extracted using a continuous screw press (expeller). No solvents, but the process generates heat through friction — often 60–100°C depending on press speed.
Position in quality spectrum: Better than solvent-extracted, lower than cold-pressed. The natural compounds are partially preserved but the heat generated is higher than cold pressing.
A Simple Buying Framework
For daily cooking, cold-pressed or wood-pressed unrefined oils for medium-heat applications; ghee for high-heat applications; refined oil if budget or smoke point is the constraint.
For health-specific benefits (antioxidants, natural nutrients): unrefined cold-pressed only. The nutritional difference between cold-pressed and refined is real.
For flavour: cold-pressed and wood-pressed oils. The flavour is a direct result of what the refining process removes.
