If you grew up in a Bengali, Punjabi, or Bihari household, the sharp, pungent smell of mustard oil hitting a hot pan is probably one of your earliest kitchen memories. For generations, it was simply the cooking oil — used for everything from deep-frying to marinating fish, tempering dals, and even oiling hair on a Sunday morning.
Then came the era of “refined oils.” Suddenly, mustard oil felt old-fashioned. People switched to sunflower, vegetable, and rice bran oils, chasing something lighter and supposedly healthier. Mustard oil got pushed to the back of the shelf.
Fast forward to today, and something interesting is happening. Nutritionists, home cooks, and the broader wellness community are rediscovering what desi kitchens never really forgot: mustard oil is genuinely remarkable.
Mustard oil has been used across the Indian subcontinent for over 5,000 years. Ancient Ayurvedic texts reference it for both cooking and medicinal purposes — from treating skin conditions to improving circulation. In regions like Bengal, Punjab, Rajasthan, and Bihar, it wasn’t just an ingredient; it was a cultural cornerstone.
The oil is cold-pressed from brown or black mustard seeds, which gives it that signature bite — a slightly spicy, earthy flavour that transforms a simple sabzi into something deeply aromatic.
In Punjabi cooking, sarson da saag literally wouldn’t exist without mustard oil. In Bengali cuisine, it’s practically compulsory for fish preparations, mustard prawn curries, and traditional achar (pickles). The flavour simply cannot be replicated with a neutral oil.
Mustard oil has a fat composition that nutritionists are increasingly impressed by. It’s high in monounsaturated and polyunsaturated fatty acids, and carries a good balance of omega-3 and omega-6 fatty acids — important for heart health and inflammation management.
Heart-friendly fats
Rich in MUFA and PUFA, which may help manage cholesterol levels when used as part of a balanced diet.
High smoke point
Around 250°C — ideal for Indian-style high-heat cooking like frying, tempering, and sautéing.
Natural antimicrobial
Contains allyl isothiocyanate, which has known antibacterial and antifungal properties.
Vitamin E boost
A natural source of vitamin E — beneficial for skin health and acting as an antioxidant.
It also contains glucosinolates — compounds that give mustard its heat and that researchers are studying for their potential role in supporting cellular health. Combined with its naturally occurring antioxidants, it’s a far more complex oil nutritionally than many of the refined alternatives that replaced it.
Beyond health, there’s a simple culinary truth: mustard oil does things no other oil can. That zingy, peppery depth it adds to a marinade, the way it makes pickle masala come alive, the way it carries spices during a tarka — these are irreplaceable qualities. No amount of sunflower oil will give your machher jhol (fish curry) the same soul.
Increasingly, professional chefs working with Indian cuisine in the UK are bringing mustard oil back to the fore — not as a nostalgic novelty, but as the genuinely superior cooking medium it has always been for this style of cooking.
If you haven’t cooked with mustard oil in a while (or ever), the flavour can feel bold at first. Here’s a practical way in: start by using it for your tadka — heat a small amount, drop in your mustard seeds, curry leaves, or dried chillies, and let the aroma tell you why people have been doing this for thousands of years. From there, try it in a simple aloo sabzi or as a base for your pickle brine. You’ll quickly understand why this oil never really needed to be replaced.
Pro tip: Heating mustard oil to its smoking point briefly before cooking helps mellow its raw pungency, giving you that rich warmth without the sharpness dominating.
The best mustard oil is cold-pressed and pure — no blending, no refinement. Brands like Heera, Natco, and KTC offer reliable options. At SunShoppers UK, we stock a range of authentic mustard oils so you can pick the size and brand that suits your kitchen — whether you’re restocking a weekly staple or trying it properly for the first time.
Good food is rarely new. Most of the time, it’s something your grandparents already knew. Mustard oil is one of those things — patient, pungent, and quietly brilliant. It waited out the refined oil era, and now it’s back where it belongs: right there on the hob.
