Mustard Oil vs Groundnut vs Sesame Oil in India 2026

Last updated: 18 September 2026

> Quick Answer: For deep frying pick groundnut oil, for South Indian tempering pick sesame, for flavour-led North and East Indian cooking pick mustard. USDA figures put groundnut oil at 44.8 g oleic acid per 100 g, sesame at 41.3 g linoleic, and mustard at 41.2 g erucic. The dish decides, not the label.

These are the three oils an Indian kitchen actually chooses between, and they are not substitutes. Per 100 g, USDA FoodData Central records groundnut at 46.2 g monounsaturated fat, sesame at 41.7 g polyunsaturated, and mustard at 59.2 g monounsaturated.

The number that settles the argument hides inside mustard oil's monounsaturated total. Only 11.6 g of that 59.2 g is oleic acid. The other 41.2 g is erucic acid, which neither rival contains. Groundnut's monounsaturated fraction is almost entirely oleic, so similar totals hide very different oils.

How much oleic, linoleic and erucic acid does each oil carry?

Groundnut oil leads on oleic acid at 44.8 g per 100 g, sesame on linoleic acid at 41.3 g. Mustard carries 41.2 g of erucic acid that neither rival has. Saturated fat runs lowest in mustard at 11.6 g and highest in groundnut at 16.9 g.

The permitted ranges matter as much as the point values. Codex pins sesame oleic acid between 35.9 and 42.3%, so the oil is consistent. Groundnut runs from 35 to 69%, so two honest bottles differ enormously.

Does mustard oil's erucic acid change the comparison?

It changes what a monounsaturated number means, not whether the oil belongs in your kitchen. Erucic acid is a long chain monounsaturate found in mustard and rapeseed and effectively absent from the other two. Codex Alimentarius permits mustardseed oil to run 22.0 to 50.0% erucic.

Breeding moves that number. The SatRas wood-pressed high oleic mustard oil, pressed from Raya Hisar 1706 seed grown on SatRas farms in Hisar, measured 23.85 g of erucic acid per 100 g on its published NIFTEM report, roughly half the 40 to 50 g typical of regular mustard oil, alongside 25.75 g of oleic acid.

Read those numbers honestly. Even that oil holds less oleic acid than ordinary groundnut oil, which reaches 44.8 g with no breeding programme behind it. If oleic acid is what you want, groundnut is better placed by nature, and the erucic acid question covers the rest.

What does each oil do to the taste of a dish?

While mustard brings about heat, sesame contributes its nutty taste. As for the groundnut, however, even if it had to offer something, it adds nothing at all. However, this feature is one of its advantages. A commercial fryer looks for oil that cannot be felt in the food, whereas a Bengali fish curry prefers a completely opposite quality.

Mustard oil's sharpness comes from allyl isothiocyanate, the compound behind wasabi's sinus hit. It is why sarso ka tel is smoked in some kitchens and poured raw in others, and why SatRas black mustard oil is sold for tadka and pickling rather than for frying pooris.

Sesame splits into two products Indian recipes rarely distinguish. Gingelly or nallennai, from raw seed, is pale and mildly nutty, poured by the ladle in Tamil and Andhra kitchens. Oil from darkly roasted seed is brown and used by the drop. Groundnut splits the same way, refined against cold pressed.

Why is each oil traditional in a different part of India?

Because the seed grew there first and the cuisine formed around it. Mandi data for 8 September 2026 still shows the pattern. Mustard was quoted in Rajasthan, Haryana, Uttar Pradesh, Madhya Pradesh, West Bengal and Assam. Groundnut was quoted in Gujarat, Maharashtra, Andhra Pradesh, Karnataka, Telangana and Tamil Nadu.

So the three oils split the country between them:

• Mustard belongs to the North and East. Bengali cooking assumes it.
• Groundnut belongs to the West and the Deccan. Gujarati cooking assumes it.
• Sesame belongs to the South. Tamil pickles, podi and dosa assume gingelly.

Sesame is the unique case. The 42 mandi prices on that day primarily came from Gujarat, Madhya Pradesh, and Rajasthan. The crop is prevalent in these states, even though this is not where sesame oil is consumed the most.

What happens to each oil when you deep fry in it?

Groundnut wins here, measurably. In an ISO 17025 laboratory study that held ten oils at 180 degrees Celsius for six hours, peanut oil returned the highest oxidative stability of any seed oil tested, 35.37 hours, and finished at 10.71% polar compounds where canola reached 22.43%.

A 2024 review in Foods gives the reason: groundnut oil holds 0.5% or less linolenic acid, the fraction that oxidises fastest. Sesame reaches stability differently. It is the most polyunsaturated of the three, yet carries the lignans ICMR-NIN names among the minor components that keep fats from going rancid, roughly 393 mg of sesamin per 100 g.

The smoke point serves as the less helpful guide. Unrefined sesame oil begins smoking at approximately 177 degrees Celsius, which is notably lower than deep-frying temperature, whereas refined sesame oil smokes at about 232. According to the same heating study cited, the smoke point of oils increased with the formation of polar compounds and thus cannot be used to measure the durability of an oil, as per the smoke point of mustard oil. ICMR-NIN's rule is more important: strain the used frying oil and add it to a curry, but never fry with it again.

What does a litre of each cost, and why?

Sesame is the expensive one, and it starts at the farm. On 8 September 2026, across 42 mandi quotes, sesame seed carried a median modal price of ₹110.71 per kg. Mustard sat at ₹73.56 across 114 quotes and groundnut at ₹70.00 across 104.

That gap survives to the bottle, and thin trade widens it: sesame drew a third as many quotes as mustard that day. Pressed oils also cost more than refined ones. SatRas prices its 1 litre wood-pressed mustard oils at ₹304 for black and ₹359 for high oleic, which what a litre should cost breaks down.

Where this comparison runs out of evidence

The USDA rows are single reference samples, not Indian averages. Three limits sit under every figure above.

• A range, not a point value. Codex allows groundnut oleic acid anywhere from 35 to 69%, so 44.8 g describes one sample rather than your bottle. Indian mustard cultivars vary just as widely.
• The frying study's oil was not a typical bottle. The peanut oil in that study was a softly refined high oleic variety at 75.49% oleic acid, not what cold pressed Indian groundnut oil looks like. It flatters groundnut as a category more than the design supports.
• Composition says nothing about handling. An oil pressed four months ago and stored above a stove behaves worse than a fresher bottle of a weaker oil.

ICMR-NIN puts visible fat at 20 to 50 g per person per day, so how much you use outranks which one you pick. Mustard oil against sunflower and olive takes the comparison wider.

This article is also educational and is not medical advice. People with heart, metabolic or allergy problems should consult their doctor regarding their diet.

Frequently asked questions

Is til oil the same as sesame oil?

Yes. Til is the Hindi name for sesame, so til oil, gingelly oil and nallennai all describe oil pressed from sesame seed. The labels differ by region, not by product. The real distinction is between oil from raw seed, pale and mild, and oil from roasted seed, dark and aromatic.

Can you use sesame oil instead of mustard oil in a recipe?

Only where the oil is a cooking medium rather than a flavour. A Bengali or Bihari dish built on mustard oil's sharpness loses its defining note if you swap in sesame. Going the other way is just as bad: a South Indian pickle made with mustard oil tastes wrong to anyone raised on gingelly.

Why do Indian snack shops fry in groundnut oil?

Because it survives repeated batches and contributes no flavour of its own. Its fatty acid mix is dominated by oleic acid with almost no linolenic acid, the fraction that oxidises fastest, so a fryer full of it degrades more slowly than one holding a high linoleic seed oil.

Is groundnut oil a risk for someone with a peanut allergy?

It depends on how the oil was made, and it is a question for a doctor rather than for a label. Highly refined groundnut oil has most of its protein removed during processing, while cold pressed versions retain more of it. Anyone with a diagnosed peanut allergy should take medical advice first.

Does roasting sesame seed before pressing change the oil?

Yes, measurably. In a 2022 study, oil from unroasted seed showed an oxidative stability induction period of 5.51 hours, while oil from seed roasted at 300 degrees Celsius reached 10.5 hours. Roasting also darkens the colour and deepens the aroma, which is why pale and dark sesame oils differ.

Is mungfali ka tel the same as groundnut oil?

Yes. Mungfali is the Hindi word for peanut, so mungfali ka tel, groundnut oil and peanut oil all name the same product from Arachis hypogaea. Indian labels favour groundnut and American labels favour peanut. The change of name causes more confusion than any real difference in the oil.