What is the Difference between Refined Oil and Wood-Press Oil?

Oil is the most basic ingredient in every Indian kitchen, yet it is the one most households spend the least time choosing. Whether it is a weeknight dal tadka or a Sunday batch of puris, oil touches nearly every meal. A government survey found that about 60% of Indian households consume refined oil, largely because it is affordable and widely available. But when you compare wood-pressed oil vs refined oil side by side, the differences in how they are made, what they contain, and how they taste are hard to ignore.

How Wood-Pressed Oil Is Made

Wood-pressed oil follows a simple, traditional process. Seeds are cleaned, dried, and fed into a wooden churner called a Lakdi Ghani. The Ghani rotates slowly (6 to 8 RPM), crushing the seeds mechanically without any external heat or chemicals.

The wooden components absorb friction heat, keeping the temperature below 40°C throughout extraction. The oil flows out naturally and is filtered through cloth or settled by gravity. No solvents, no bleaching, no deodorising.

At Indic Wisdom's manufacturing unit, this traditional Lakdi Ghani extraction is paired with modern GMP-certified quality control. Every batch is lab-tested for purity before packing, ensuring hygiene without compromising the oil's natural composition.

How Refined Oil Is Made

Refined oil goes through five industrial steps before it reaches your kitchen:

• Solvent extraction: A high-speed expeller takes most of the oil from the seed. Food-grade hexane (a petroleum-derived solvent) dissolves out whatever remains, recovering close to all the oil in the seed.

• Degumming: Water or acid removes phospholipids and natural gums that would otherwise cloud the oil.

• Neutralisation: Alkali strips free fatty acids, the compounds that make an unrefined oil smoke earlier and go off sooner.

• Bleaching: Activated bleaching earth adsorbs the natural pigments, turning the oil from deep amber to near-colourless.

• Deodorising: Steam under vacuum at roughly 200°C removes all volatile aroma compounds, leaving the oil odourless and tasteless.

Each step exists for a reason: higher yield, longer shelf life, neutral flavour, and lower cost. But these steps also remove Vitamin E, polyphenols, phytosterols, and the natural aroma that made the oil nutritious and flavourful in the first place.

Wood Pressed Oil vs Refined Oil: Comparison Table

Here is what the wood-pressed oil vs refined oil comparison looks like across the factors that matter most:

A 2024 study by ICAR-Indian Institute of Oil Palm Research confirmed that cold-pressed oils retain important bioactive compounds, including antioxidants and polyphenols, that are absent in their refined counterparts.

Why Wood-Pressed Oil Is Healthier Than Refined Oil

The health comparison comes down to what each process preserves and what it removes:

• Vitamin E retention: Cold-pressed oils retain 90 to 95% of the seed's natural Vitamin E. Refining can reduce Vitamin E content by up to 70%.

• Zero trans fats: Deodorisation at 200°C and above can convert 0.5 to 2% of natural fatty acids into the trans configuration. Wood-pressed oils, extracted below 40°C, contain zero trans fats.

• No chemical residue: Refined oils rely on hexane for extraction. While most is evaporated off, trace residues may remain. Wood-pressed oils use only mechanical force.

• Preserved antioxidants: Research on cold-pressed edible oils has confirmed that these oils contain significantly higher levels of bioactive compounds, including tocopherols and phenolic acids.

• Heart-friendly profile: The original monounsaturated and polyunsaturated fat ratios remain intact in wood-pressed oil, supporting healthier cholesterol levels as part of a balanced diet.

This does not mean refined oil is dangerous. It is a regulated, lawful food product. But for households looking to maximise nutrition from their cooking oil, wood-pressed oil delivers more of what the seed originally contained.

How to Choose the Right Oil for Your Kitchen

The wood-pressed oil vs refined oil decision depends on how you cook:

• Everyday Indian cooking (tadka, sabzi, shallow frying): Wood-pressed groundnut, sesame, or mustard oil. These handle temperatures between 160 and 180°C comfortably and add flavour to the dish.

• Deep frying at high heat: Wood-pressed mustard oil (smoke point around 250°C) works well. For other oils, refined versions handle sustained high heat better.

• Salad dressings, chutneys, and raw use: Wood-pressed oils shine here because their unprocessed flavour is the point.

• Portion-controlled cooking: NAVA Wood-Pressed Oil Sprays offer spray-format convenience for tawa cooking and air fryer use.

Many kitchens keep both types. The goal is to use wood-pressed oil wherever flavour and nutrition matter, and reach for refined oil only when sustained high-heat frying demands it.

Conclusion

The difference between wood-pressed oil vs refined oil is straightforward: one keeps the seed's full nutritional and flavour profile intact, and the other trades that away for higher yield, lower cost, and a longer shelf life. For Indian households cooking two to three meals a day, that trade-off matters. Wood-pressed oil gives you more nutrition, more flavour, and a cleaner ingredient list in every bottle.

To understand the difference between wood-pressed and cold-pressed oil, read our guide on what is wood-pressed oil and how it is made. Explore the full range of cold-pressed cooking oils  from Indic Wisdom to find the right oil for your household.

Frequently Asked Questions

Is wood-pressed oil significantly healthier than regular refined oil?

Yes. Wood-pressed oil retains Vitamin E, polyphenols, phytosterols, and essential fatty acids that refining strips away. It contains zero trans fats and zero chemical residue. For daily cooking, it delivers substantially more nutrition per tablespoon than refined oil.

Which is the healthiest oil for cooking?

The healthiest cooking oil depends on the dish. For everyday Indian cooking, wood-pressed groundnut or sesame oil offers the best balance of nutrition, flavour, and heat tolerance. For high-heat deep frying, wood-pressed mustard oil (250°C smoke point) is a strong choice.

Does wood-pressed oil have a lower smoke point?

For most oil types, yes. Wood-pressed groundnut oil has a smoke point of about 180°C compared to 227°C for refined groundnut oil. The exception is mustard oil, which holds around 250°C whether wood-pressed or refined, making it suitable for deep frying.

Why is refined oil cheaper than wood-pressed oil?

Refined oil costs less because solvent extraction recovers nearly all the oil from the seed, while a wooden Ghani extracts significantly less from the same quantity. More seeds are needed per litre of wood-pressed oil, and the process is slower, both of which raise the cost.

Can wood-pressed oil be used for deep frying?

Wood-pressed mustard oil (smoke point around 250°C) handles deep frying well. Most other wood-pressed oils are better suited for tadka, sauteing, and shallow frying at 160 to 180°C. For sustained high-temperature frying with other oil types, a refined version is more practical.

How long does wood-pressed oil last compared to refined oil?

Wood-pressed oil keeps for 4 to 6 months from the date of pressing when stored in a cool, dark place with the cap tightly closed. Refined oil typically lasts 9 to 12 months. The shorter shelf life of wood-pressed oil reflects the fact that the natural compounds in it have not been chemically removed.