Kacchi Ghani vs Refined Oil — Which is Healthier?

Walk into any supermarket in Uttar Pradesh and you'll find two kinds of mustard oil: one labelled "Kacchi Ghani" and one labelled "Refined." The price difference is often small. But the difference in what's inside is enormous.

What Is Kacchi Ghani Oil?

"Kacchi" means raw or unprocessed. "Ghani" is the traditional wooden or stone press used to extract oil from seeds. Together, kacchi ghani refers to cold-pressed extraction — where seeds are crushed slowly at low temperature (below 40–45°C) with no added heat or chemicals.

The result is oil that:

• Retains all its natural omega-3 and omega-6 fatty acids
• Keeps glucosinolates — the compounds responsible for mustard's sharp, pungent smell
• Has a deep yellow-amber colour and strong aroma
• Contains no residual solvents

How Refined Oil Is Made

Refined mustard oil starts the same way — with mustard seeds. But then it goes through:

1. Solvent extraction — hexane is used to pull remaining oil from the pressed cake
2. Degumming — removes gums and waxes
3. Deacidification — neutralises free fatty acids with caustic soda
4. Bleaching — removes colour pigments using activated earth
5. Deodorising — steam treatment at 180–220°C removes all smell

At the end of this process, you have a pale, odourless oil. All the pungency is gone. So is most of the nutrition.

Nutrition Comparison

| Property | Kacchi Ghani | Refined | |---|---|---| | Omega-3 (ALA) | High | Significantly reduced | | Glucosinolates | Preserved | Mostly destroyed | | Natural antioxidants | Present | Removed in bleaching | | Colour | Rich amber-yellow | Pale yellow or colourless | | Aroma | Pungent and earthy | Neutral / odourless | | Processing additives | None | Possible residuals |

What About "Mustard Khal" Smell?

Many people assume that the strong smell of kacchi ghani mustard oil means it's not suitable for cooking. This is incorrect. The pungency largely dissipates when the oil is heated — which is why UP cooking traditionally starts with heating mustard oil until it smokes slightly before adding ingredients. The volatile compounds (allyl isothiocyanates) evaporate with heat.

The Health Case for Kacchi Ghani

Research on mustard oil's health profile consistently points to its favourable fatty acid composition — approximately 60% monounsaturated fats, 21% polyunsaturated fats (including omega-3), and only 12% saturated fats.

Cold-pressing preserves the glucosinolates and erucic acid profile that give mustard oil its antimicrobial and anti-inflammatory properties. These are largely neutralised in the refining process.

Our Recommendation

For daily cooking, pickling, and hair care — choose kacchi ghani. The flavour contribution to food is significant and authentic. The nutritional profile is superior. And for families in UP who've cooked with sarso tel for generations, the unrefined version is simply what the cuisine was designed around.

At USHBHA, every litre we press is single-batch kacchi ghani. No blending with refined oil, no additives, no shortcuts.