"Cold pressed" is on every second oil bottle in India now, and most people buying it could not say exactly what it means. It is worth knowing, because the term describes a process, and the process is the entire difference between one oil and another.
Cold Pressed Oil: The Meaning
Cold pressed oil is oil extracted by mechanical pressing at low temperature, without heat, chemicals or refining. Seeds are crushed slowly, the oil is allowed to settle, and it is filtered through cloth. That is the whole process.
The word "cold" does not mean chilled. It means no external heat is applied: the only warmth is the small amount the press itself generates through friction, typically kept under about 50°C.
Cold Pressed, Wood Pressed, Kachi Ghani, the same thing
These three terms cause endless confusion. In Indian usage they describe the same traditional method from different angles:
- Wood pressed: refers to the wooden ghani doing the crushing (mara chekku in Tamil, kolhu in the north).
- Kachi ghani: literally "raw press", the Hindi term, most often used for mustard oil.
- Cold pressed: refers to the temperature staying low.
An oil can honestly be all three at once. Ours are.
How It Is Actually Made
- Cleaning: seeds are cleaned and sorted.
- Slow crushing: a wooden ghani rotates slowly, crushing rather than grinding at speed. Wood conducts heat poorly, which keeps the temperature down.
- Settling: the oil rests so sediment falls out naturally.
- Cloth filtering: a simple physical filter, no bleaching earth, no deodorising.
- Bottling: straight in, nothing added.
Compare that with refined oil, where seeds are heated, treated with a solvent such as hexane, then bleached and deodorised at high temperature.
The Real Benefits
- Nutrients survive: vitamin E, polyphenols and natural antioxidants are heat-sensitive and largely destroyed by refining.
- No chemical residue: nothing but seed and pressure goes in.
- No trans-fat risk from processing: high-heat deodorising can create trace trans fats. Cold pressing skips that step entirely.
- Real flavour: the oil tastes of the seed, nutty groundnut, pungent mustard, sweet coconut. Refining removes this on purpose.
- Natural fatty acids intact: including omega-3 ALA in mustard oil.
Be realistic about the claims, though. Cold pressed oil is still oil, calorie-dense, and quantity matters as much as quality.
The Honest Trade-Offs
- It costs more: the yield is far lower for the same quantity of seed.
- Shorter shelf life: no preservatives and intact natural compounds mean months, not years.
- It goes cloudy: normal in cold weather, and it clears on warming.
- Slightly lower smoke points than the refined version of the same oil, relevant only for sustained deep frying.
How to Tell If It Is Genuine
The label is not enough: "cold pressed" is unregulated enough to be stretched. Look for the pattern instead:
- It smells of the seed. Odourless oil has been deodorised.
- It is not water-clear. Natural oil carries a little haze and sediment.
- It varies slightly between batches. Seeds and seasons vary.
- It has a real expiry window, not two years.
- The seller names the method and the press.
Our cold pressed oils, groundnut, mustard and coconut, are pressed on our own farms in small batches.
For the direct comparison with refined oil, see cold pressed oil vs refined oil.
FAQs
1. What does cold pressed oil mean?
Oil extracted by mechanical pressing at low temperature, with no heat, solvents or refining applied.
2. Is cold pressed oil the same as wood pressed?
In Indian usage, effectively yes. Wood pressed names the wooden ghani; cold pressed names the low temperature.
3. Is cold pressed oil actually healthier?
It retains antioxidants and vitamin E that refining destroys, and carries no solvent residue. It is still oil, so quantity matters.
4. Why is cold pressed oil expensive?
The yield is much lower and the process slower, so the same seed produces less oil.
5. Can cold pressed oil be used for frying?
Yes, groundnut oil in particular has a high smoke point. Avoid reusing frying oil repeatedly.
Conclusion
Cold pressed oil simply means oil made the way it was before industrial refining: crushed slowly, filtered through cloth, nothing added. You pay more and it keeps for less time, and in exchange you get the nutrients and the flavour the seed actually had.
