A pungent, yellowish oil pressed from mustard seeds. Used for frying and pickling in Indian and Bengali cuisine; rules for its use vary by country.

What Is Mustard Oil?

Mustard oil, pressed from Brassica juncea and related mustard seeds, is a dark yellow, pungent vegetable oil. Its sharp, hot aroma becomes more pronounced when heated, distinguishing it from other liquid oils.

It is a traditional oil in Indian, Bengali, and Pakistani cuisines, where it is used for frying, sautéing, and pickling. A common method is to heat it until it begins to smoke, then let it cool to soften its pungency.

Nutritional Value of Mustard Oil

Like all pure liquid oils, mustard oil provides about 884 kcal of energy per 100 g and is 100% fat; it contains no carbohydrates or protein. It is low in saturated fat and rich in monounsaturated and polyunsaturated fatty acids.

How Should Mustard Oil Be Used?

Because mustard oil contains erucic acid, culinary use is restricted in some countries, or it is sold labeled “for external use only.” For this reason, follow the product label and use it moderately in cooking.

This is general information; mustard oil is a food, not a substitute for medical treatment. Follow the food regulations and product labeling in your country.

How to Choose Mustard Oil

Good mustard oil should be clear, dark yellowish, and have a pungent, fresh smell. If it is for culinary use, the label should say that it is suitable for cooking; avoid cloudy or rancid oil.

  • It should be dark yellowish and clear.
  • Check the label for suitability for culinary use.
  • Do not choose oil that is rancid or cloudy.

How to Store Mustard Oil

Store mustard oil in a tightly closed bottle in a cool, dark place; protect it from light and heat, which speed rancidity. Keep the bottle opening clean.

Using Mustard Oil in Cooking

Mustard oil is used most often in Indian and Bengali cuisine for frying fish, sautéing vegetables, and making pickles; its pungent aroma gives dishes character. Heating it until it smokes and then letting it cool before use softens its pungency.

How to Reduce Mustard Oil’s Pungency

Heat the oil until it begins to smoke lightly, then let it cool to the temperature needed for use; this process noticeably softens its pungent smell and gives the dish a more balanced flavor.

Frequently Asked Questions

Is mustard oil used for cooking in every country?

No; because of its erucic acid content, its use as food is restricted in some countries, and it is sold labeled “for external use.” Follow the product label and local regulations.

Why is mustard oil heated and cooled?

This is a common method for softening its pungent smell; when heated until it smokes and then brought to the temperature needed for use, its flavor becomes more balanced.

What does mustard oil taste like?

It has a pungent, slightly hot, characteristic mustard aroma, so even a small amount gives a dish a distinct character.

In the Kitchen

Recipes with mustard oil

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