Sarson ka tel — mustard oil — has been a staple of Pakistani kitchens for generations, prized for its sharp flavor in curries, tempering, and pickling. But it's also one of the most-searched, most-debated cooking oils online, with questions ranging from "why do you have to heat it first?" to "is mustard oil actually safe?" This guide covers what the tradition is, what the research says, and how cold-pressed processing changes the picture.
Why Is Mustard Oil Traditionally Heated Before Cooking?
Most Pakistani households know the step: heat raw mustard oil until it reaches its smoking point, let it cool slightly, then cook with it. This practice — sometimes called "garam karna" — exists mainly to soften the oil's raw pungency and strong aroma, making the flavor rounder and less sharp for everyday cooking. Some traditional accounts also associate the heating step with reducing the oil's raw intensity, though the scientific evidence on exactly what heating does to the oil's chemical composition is limited.
This step isn't a food-safety requirement — mustard oil is a permitted, traditionally consumed cooking oil in Pakistan. It's a flavor and usability step, one that cold-pressed, purification-heavy processing can reduce the need for. Arabian Farms' mustard oil goes through a specialized single cold press plus a strict multi-stage purification process — the same standard used in our Elite Canola Oil — specifically to reduce raw pungency at the processing stage, so the oil is ready to cook with directly.
See the full product and how it compares to traditional sarson ka tel → Arabian Mustard Organic Oil
Is Mustard Oil Safe? The Erucic Acid Question
This is the single most-asked question about mustard oil online, and it deserves a straight answer.
Mustard oil naturally contains erucic acid, a long-chain fatty acid found in the Brassica family of plants (which also includes canola's parent crop, rapeseed). Depending on the variety and region, erucic acid can make up a substantial share of mustard oil's fatty acid content — research measuring Indian mustard oil samples found levels frequently above 40%.
Because of this, several countries — including the United States, Canada, and the European Union — restrict or ban mustard oil for cooking use, based largely on decades-old animal studies that linked high erucic acid intake to a heart condition (myocardial lipidosis) in rats. In the US, mustard oil sold at retail is typically labeled "for external use only" as a result.
At the same time, mustard oil has been a traditional cooking oil across Pakistan, India, Bangladesh, and Nepal for generations, and remains legally sold and regulated for food use in Pakistan under Punjab Food Authority standards. The scientific debate is genuinely unresolved: the animal studies that prompted Western restrictions used very high erucic acid doses, and there's limited direct human clinical evidence either confirming or ruling out harm at typical dietary intake levels. This is presented here as context, not as a safety guarantee — we're not making a claim either way beyond what the research itself shows.
What This Means Practically
- Mustard oil is a legal, regulated, traditional cooking oil in Pakistan.
- It naturally contains more erucic acid than oils like canola, which was specifically bred to minimize it.
- As with any oil, using it as part of a varied diet — rather than as your only cooking fat — is a reasonable, commonly recommended approach.
- If you're specifically looking for a lower-erucic-acid option from the same Brassica family, canola oil is the version bred for that.
Nutrition Profile
Per USDA composition data, 100g of mustard oil provides approximately 884 calories and is composed of roughly:
- 11% saturated fat
- 59% monounsaturated fat (including both oleic acid and erucic acid)
- 21% polyunsaturated fat, including omega-3 (ALA) and omega-6 (linoleic acid)
The oil's monounsaturated fat content is often cited as a reason it's traditionally considered heart-supportive in South Asian nutrition discussions — though as noted above, the erucic acid component of that monounsaturated fat is also the source of the ongoing safety debate. We're not presenting mustard oil as treating or preventing any condition; this is general compositional information, not a health claim.
Cold-Pressed vs Traditional Mustard Oil — What Actually Differs
| Traditional Sarson ka Tel | Arabian Farms Mustard Oil | |
|---|---|---|
| Extraction | Varies — often kacchi ghani (traditional press) | Single specialized cold press |
| Purification | Minimal filtration | Strict multi-stage purification |
| Taste & aroma | Strong, pungent | Mild |
| Pre-heating needed? | Typically yes, before cooking | No — ready to use |
| Best for | Pickling, authentic strong-flavor cooking | Everyday cooking, mild-flavor preference |
Choosing the Right Mustard Oil for You
- Making achaar (pickles)? A traditional, strongly pungent mustard oil will serve you better — the pungency plays a role in traditional preservation.
- Everyday cooking, tempering, or introducing mustard oil to family members who find it overpowering? A milder, ready-to-use option like Arabian Mustard Organic Oil skips the pre-heating step and the sharpest pungency while keeping the same base oil.
- Concerned about erucic acid specifically? Canola oil, bred to minimize erucic acid, is the closest lower-erucic-acid alternative from the same plant family — see our cold-pressed vs refined canola oil guide.
Frequently Asked Questions
Why do people heat mustard oil before cooking with it?
Mainly to soften its raw pungency and aroma for everyday cooking. It's a flavor and usability practice rather than a food-safety requirement.
Is mustard oil banned anywhere?
Yes — the US, Canada, and the EU restrict or ban mustard oil for cooking use due to its erucic acid content, based on animal studies from decades ago. It remains a legal, regulated, traditional cooking oil in Pakistan and across South Asia.
What is erucic acid, and should I be worried about it?
It's a fatty acid naturally present in mustard and rapeseed-family oils. High-dose animal studies have linked it to heart tissue changes, but the evidence in humans at typical dietary levels is limited and debated. We're presenting this as context rather than a safety verdict.
Does cold-pressing remove erucic acid?
No — cold-pressing changes the oil's pungency, aroma, and nutrient retention, not its underlying fatty acid composition. Erucic acid content is determined by the seed variety, not the pressing method.
Is Arabian Farms mustard oil good for pickling?
It's milder than traditional sarson ka tel, so it's better suited to everyday cooking than to pickling, where a stronger, more pungent oil traditionally performs better.
Explore Arabian Farms cooking oils