Wood Pressed vs Cold Pressed vs Refined Oil: The Truth

Why Your Cooking Oil Choice Matters More Than You Think

Walk into any Indian kitchen and you'll find a bottle of refined sunflower or soybean oil on the shelf. It's cheap, odourless, and fries beautifully. But what if that very oil is quietly working against your health?

Over the past decade, a quiet revolution has been underway in Indian kitchens. Health-conscious families — especially across Tamil Nadu, Karnataka, and Andhra Pradesh — are going back to their roots: to the traditional wooden cold press, the lakdi ghani, that their grandmothers never abandoned. And the science is finally catching up to the wisdom.

This guide breaks down the three main categories of edible oil available in India today — wood pressed, cold pressed, and refined — so you can make an informed choice for your family.

What Is Wood Pressed Oil (Lakdi Ghani Oil)?

Wood pressed oil, also called lakdi ghani oil or chekku oil in Tamil Nadu, is extracted using a slow-rotating wooden pestle that crushes oilseeds at very low speeds. The friction generates minimal heat — typically below 40°C — and the oil is collected in a wooden trough before filtering.

• Extracted using traditional wooden machinery (no steel or iron contact)
• Temperature stays below 40°C throughout the process
• No chemicals, solvents, or preservatives added
• Rich amber colour, natural aroma, and full-bodied flavour
• Shorter shelf life (3–6 months) but higher nutritional density

In Tamil Nadu, chekku sesame oil, groundnut oil, and coconut oil have been staples for generations. Thinai Organics sources and cold-presses oils using these same time-honoured methods, ensuring you receive oil in its most natural form.

What Is Cold Pressed Oil?

Cold pressed oil is extracted mechanically — typically using steel or iron expeller presses — without applying external heat. While the name implies a completely cool process, most commercial cold pressing does generate some friction-based heat, often reaching 50–60°C.

The term "cold pressed" on a label means that no external heat was applied, but it does not guarantee the same low-temperature extraction as true wood pressing. Cold pressed oils retain most nutrients but may lose some volatile antioxidants compared to wood pressed alternatives.

Cold pressed oil is significantly healthier than refined oil and a good choice when wood pressed options aren't available for a specific seed variety.

What Is Refined Oil — And Why Is It Problematic?

Refined oil is what fills the shelves of most Indian grocery stores. It undergoes a multi-step industrial process:

1. Solvent extraction using hexane (a petrochemical) to maximise yield
2. Degumming to remove natural gums and phospholipids
3. Bleaching with activated clay to strip colour and odour
4. Deodorisation at 180–230°C to remove natural flavour
5. Hydrogenation (in some oils) to extend shelf life — creating trans fats

By the time refined sunflower oil reaches your bottle, it has been heated to temperatures approaching 230°C, treated with chemicals, and stripped of most natural vitamins, antioxidants, and phytonutrients. What remains is calorically dense but nutritionally hollow.

Research has linked long-term consumption of refined oils — particularly hydrogenated varieties — with increased inflammation, higher LDL cholesterol, and greater cardiovascular risk.

Wood Pressed vs Cold Pressed vs Refined: A Direct Comparison

Which Oil Should You Use for Indian Cooking?

For everyday South Indian cooking (tadka, curries, rice dishes): Wood pressed sesame oil or groundnut oil is the gold standard — naturally high smoke point, full of flavour and nutrients.

For coconut-based dishes: Wood pressed coconut oil is unmatched. Its MCTs are rapidly metabolised and add irreplaceable flavour to South Indian dishes.

For salads, chutneys, and drizzles: Cold pressed flaxseed or sesame oil works beautifully without heat.

For deep frying: Wood pressed groundnut oil tolerates high temperatures while still being far healthier than refined oil.

The Thinai Organics Difference

At Thinai Organics, every drop of our oil range is extracted using traditional methods that respect both the seed and your health — sourced from certified organic farms, extracted at low temperatures without hexane or chemical solvents, unrefined, unbleached, and free from artificial preservatives.

Frequently Asked Questions

Is wood pressed oil the same as cold pressed oil?

No. Wood pressed oil uses a traditional wooden pestle (lakdi ghani) that keeps temperatures below 40°C and avoids any metal contact. Cold pressed oil uses steel or iron presses and may reach 50–60°C. Both are healthier than refined oil, but wood pressed retains the most nutrients.

Can I use wood pressed groundnut oil for deep frying?

Yes. Wood pressed groundnut oil has a smoke point of approximately 177–232°C, making it suitable for Indian-style frying and far healthier than refined oil.

Why is wood pressed oil more expensive than refined oil?

Wood pressed oil yields 20–30% less oil per kilogram of seed and takes more time to produce. You're paying for the absence of chemicals — no hexane, no bleaching, no deodorisation — and superior nutritional quality.