Traditional Oil Extraction Method: Why Wooden Ghani Cold-Pressed Oils Are Better for Your Health

Most cooking oils on Indian supermarket shelves look clean, smell neutral, and pour easily. But that "purity" comes at a cost — high heat, chemical solvents, and industrial refining that strip away almost everything beneficial in the original seed or nut.

Wooden ghani extraction is the opposite of all that. It is slow, low-heat, and mechanical — a method that Indian farmers and oil pressers have used for centuries to produce oil that is genuinely nourishing. At Jiyo Raw, we never abandoned this tradition. Every drop of our cold-pressed oil is extracted the old way: wood against seed, no heat, no hexane, no shortcuts.

This page explains what wooden ghani extraction actually is, why it matters for your health, and why the oil in your kitchen deserves a serious upgrade.

 

What is the Wooden Ghani Method?

The wooden ghani — also called the kolhu or chekku in different parts of India — is a traditional oil press made from a large wooden pestle rotating inside a wooden or stone mortar. Oilseeds such as groundnut, sesame, mustard, or coconut are placed inside the ghani, and the pestle crushes them slowly through continuous rotation, typically powered by bullocks or an electric motor turning at very low speed.

The critical difference is friction and temperature. The ghani rotates slowly enough that the oil is pressed out without generating significant heat. The oil that flows out is raw, unfiltered, and nutritionally intact — retaining its natural colour, aroma, flavour, and the full spectrum of nutrients the seed originally contained.

No chemicals are added. No heat is applied externally. No bleaching or deodorising step follows. The oil goes from seed to jar in its most natural state.

 

How Modern Refining Destroys Your Oil

To understand why wooden ghani oils are better, it helps to understand what happens in a conventional oil refinery:

Step 1 — Solvent Extraction
Seeds are washed in chemical solvents (typically hexane, a petroleum derivative) to extract maximum oil yield. Traces of the solvent can remain in the final oil.

Step 2 — High-Heat Processing
The crude oil is heated to temperatures between 160°C and 240°C to remove colour, odour, and impurities. At these temperatures, heat-sensitive vitamins, antioxidants, and fatty acids begin to break down. Harmful compounds like trans-fats and free radicals can form.

Step 3 — Bleaching
The oil is passed through bleaching earth to remove colour pigments. Many of these pigments — including chlorophyll and carotenoids — are actually beneficial to health and are removed in this step.

Step 4 — Deodorising
High-pressure steam at extreme temperatures strips away the natural flavour and aroma of the oil. This also destroys residual volatile nutrients.

Step 5 — Additives
Refined oils often receive synthetic antioxidants (like BHA and BHT) and preservatives to extend shelf life — compensating for the natural antioxidants that were destroyed in earlier steps.

What reaches your kitchen is a nutritionally depleted, chemically processed liquid that looks clear but has been fundamentally altered from its natural state.

 

Why Wooden Ghani Oils Are Better for Health

1. Nutrients Are Preserved, Not Destroyed

Cold-pressed wooden ghani oils retain fat-soluble vitamins (A, D, E, K), natural antioxidants, polyphenols, and phytosterols that are eliminated during high-heat refining. For example, cold-pressed groundnut oil retains its natural Vitamin E, a potent antioxidant linked to reduced oxidative stress and improved cardiovascular health. Sesame oil pressed the traditional way keeps its sesamol and sesamin content intact — compounds with proven anti-inflammatory and liver-protective properties.

2. Natural Fatty Acid Profile Remains Intact

Heat and chemical processing alter the fatty acid structure of oils. Cold-pressed oils retain their original balance of monounsaturated fats (MUFA), polyunsaturated fats (PUFA), and saturated fats — exactly as nature arranged them. This balance is what makes a particular oil suitable for specific body functions: cell membrane integrity, hormone production, brain function, and absorption of fat-soluble nutrients.

3. Zero Chemical Residue

Wooden ghani extraction uses no chemical solvents at any stage. There is no hexane, no bleaching agent, no synthetic deodoriser. You are consuming oil in its purest mechanical form — nothing added, nothing removed except the seed material itself.

4. Retains Natural Antioxidants

Antioxidants like Vitamin E, polyphenols, and plant sterols act as the oil's natural preservatives and also deliver direct health benefits — reducing inflammation, protecting against cellular damage, and supporting immune function. Refined oils destroy these compounds and then add synthetic alternatives. Wooden ghani oils keep the real ones.

5. Better Digestion and Gut Compatibility

Traditional Indian medicine (Ayurveda) has long recommended cold-pressed oils as easier on the digestive system. The natural phospholipids and enzymes retained in wooden ghani oils support better absorption and are less likely to cause the inflammation and digestive disruption associated with refined and hydrogenated oils.

6. Rich Flavour That Improves Food

Cold-pressed oils taste and smell like what they are — pressed groundnut oil has a distinct nuttiness, sesame oil has its characteristic warmth, mustard oil has its characteristic pungency. This isn't just about taste; these natural volatile compounds also carry health benefits. Refined oils are flavourless by design, and that design strips away beneficial compounds along with the flavour.

7. No Trans Fats from Processing

High-heat refining and partial hydrogenation are known to produce trans fats — the most harmful class of dietary fats, linked to heart disease, diabetes, and systemic inflammation. Because wooden ghani oils are never subjected to this heat or hydrogenation, they contain no processing-induced trans fats.

Wooden Ghani vs. Refined Oil: A Direct Comparison

 

Which Oils Does Jiyo Raw Extract Using the Wooden Ghani Method?

At Jiyo Raw, we cold-press the following oils using traditional wooden ghani extraction:

Cold-Pressed Groundnut (Peanut) Oil — Rich in Vitamin E and monounsaturated fats. Ideal for Indian cooking, tempering, and deep-frying at moderate heat.

Cold-Pressed Sesame Oil — High in sesamol, sesamin, and natural antioxidants. Excellent for tadkas, South Indian cooking, and Ayurvedic use.

Cold-Pressed Mustard Oil — Retains its natural allyl isothiocyanate — the compound responsible for its pungency and its antimicrobial and anti-inflammatory properties. A kitchen staple across North and East India.

Cold-Pressed Coconut Oil — Unrefined, virgin coconut oil pressed without any heat or chemicals. Retains lauric acid, natural MCTs, and the characteristic aroma of fresh coconut.

Each variety is sourced from farms where the seeds are grown without synthetic pesticides, ensuring that the oil you get is clean at every stage — from soil to seed to bottle.

 

Why Jiyo Raw for Cold-Pressed Wooden Ghani Oils?

We Actually Use Wooden Ghani — Not Just "Cold-Pressed" in Name
Many brands claim cold-pressed but use steel expellers that generate substantial heat through friction. Our wooden ghani extraction is true cold-press — low rotation speed, wood-on-seed contact, oil temperatures that never cross safe thresholds.

Small-Batch Processing for Freshness
We press in small batches to ensure that every bottle reaching you is fresh. Cold-pressed oils have a shorter natural shelf life than refined oils — and that's a good sign. We don't compensate for this with preservatives; we compensate with frequent, fresh pressing.

Farm-Sourced Seeds
We source our oilseeds directly from farms practising natural and organic cultivation. The quality of the oil is determined by the quality of the seed. We take this seriously.

No Blending, No Dilution
Our oils are single-origin and single-ingredient. No blending with cheaper refined oils, no dilution, no mixing of varieties. What the label says is what the bottle contains.

Transparent and Traceable
We believe you have the right to know where your food comes from. Our sourcing is traceable and our extraction process is open — we welcome questions about how our oils are made.

Glass Bottle Packaging
Our oils are bottled in food-safe glass — not plastic. Plastic leaches chemicals into oil over time, especially oils stored for weeks or months. Glass preserves the oil's purity and flavour without adding anything to it.

 

How to Use Cold-Pressed Wooden Ghani Oils

Cold-pressed oils have a lower smoke point than refined oils, which means they are best suited to:

• Low to medium heat cooking — tadkas, sautéing, and light frying

• Raw use — salad dressings, chutneys, marinades, and drizzling over cooked food

• Ayurvedic applications — oil pulling, abhyanga (self-massage), and topical use

• Baking — as a butter or refined oil substitute

• Finishing — adding a spoonful to dal, rice, or sabzi just before serving to retain all nutrients

For high-heat deep-frying, we recommend our cold-pressed groundnut oil or coconut oil, which have relatively higher natural smoke points among cold-pressed varieties.

 

Make the Switch to Real Oil

The oil you cook with every day matters more than most people realise. It is the medium through which heat, flavour, and fat-soluble nutrients reach your food and your body. Choosing a wooden ghani cold-pressed oil over a refined one is not a premium indulgence — it is simply choosing food over a processed substitute.

Explore Jiyo Raw's full range of cold-pressed wooden ghani oils. Order online and have farm-fresh, traditionally extracted oil delivered to your home across India.

👉 Shop Cold-Pressed Oils on Jiyo Raw

 

Frequently Asked Questions

Q1. What is the difference between wooden ghani oil and regular cold-pressed oil?
Wooden ghani oil is extracted using a traditional wooden press (kolhu) at very low rotation speeds, which generates minimal friction heat and keeps oil temperature below 45°C. Regular "cold-pressed" oils sold commercially may use steel expeller machines that, despite the label, can generate significant heat through friction. True wooden ghani extraction is the most traditional and heat-minimal form of oil pressing available.

Q2. Are wooden ghani oils safe for daily cooking?
Yes. Wooden ghani cold-pressed oils are entirely safe — and nutritionally superior — for daily cooking. For everyday use such as tempering, sautéing, making sabzis, and adding to dal and rice, cold-pressed oils work perfectly. For very high-heat deep-frying on a daily basis, choosing an oil with a naturally higher smoke point such as cold-pressed groundnut or coconut oil is advisable.

Q3. Why does cold-pressed oil taste and smell so different from refined oil?
The distinct flavour and aroma of cold-pressed oils come from naturally occurring volatile compounds — terpenes, polyphenols, and fatty acid derivatives — that are destroyed during high-heat refining. This is precisely why refined oils are flavourless: the refining process removes these compounds to produce a neutral product. The strong taste and smell of wooden ghani oils is not a defect — it is evidence of nutritional integrity.

Q4. Do wooden ghani oils have a shorter shelf life? Is that a problem?
Cold-pressed oils do have a shorter shelf life than refined oils — typically 6 to 12 months — because they retain natural compounds that slowly oxidise over time, rather than synthetic preservatives that extend shelf life artificially. This is actually a sign of purity. To ensure freshness, store cold-pressed oils in a cool, dark place, away from direct sunlight and heat, and use within the recommended period after opening.

Q5. How is Jiyo Raw's wooden ghani extraction different from mass-market cold-pressed brands?
 Jiyo Raw uses genuine wooden ghani presses in small batches, sources seeds directly from farms practising natural cultivation, bottles in glass (not plastic) to prevent chemical leaching, and never blends or dilutes its oils with cheaper refined varieties. Many mass-market brands use the term "cold-pressed" loosely to describe steel expeller extraction, which generates more heat and yields a nutritionally inferior product compared to authentic wooden ghani oil.