There is a particular smell that belongs to Indian childhoods. It is the smell of a kadhai heating up, oil shimmering before the mustard seeds go in. In Gujarat, in Maharashtra, in Rajasthan, in most of the belt where groundnut is grown and pressed, that smell was peanut oil. Not refined. Not deodorised. The real thing — with its roasted, nutty character that told you exactly what it was made from.
Most people reading this grew up with that smell. Most people buying grocery-store peanut oil today are not getting it.
This article is about what cold pressed peanut oil actually is, what refined peanut oil actually is, why they are not the same product, and what the science says about the difference. It is also about why peanut oil fell out of favour in Indian kitchens — and why that shift was not entirely based on evidence.
What Peanut Oil Actually Contains
Arachis hypogaea — the groundnut — is one of the most nutritionally dense oilseeds cultivated in India. India is the world's second largest producer of groundnuts, with Gujarat alone accounting for approximately 40% of national production. The oil pressed from these seeds has a fatty acid profile that nutritional scientists consider genuinely favourable.
Cold pressed peanut oil is predominantly oleic acid — a monounsaturated omega-9 fatty acid that makes up approximately 44–56% of its composition. The remainder is primarily linoleic acid (omega-6, approximately 28–33%) and palmitic acid (a saturated fat, approximately 8–10%). This balance sits comfortably within the range that most nutritional guidelines consider healthy for regular consumption.
But the fatty acid profile is only part of the story. Cold pressed peanut oil retains a range of bioactive compounds that refining removes entirely.
- Resveratrol: A polyphenol found in the skin of peanuts and retained in cold pressed oil. The same compound studied extensively in grapes and red wine for its antioxidant properties. Heat and chemical refining destroy it.
- Vitamin E (tocopherols): Peanut oil is a meaningful source of alpha and gamma tocopherols — fat-soluble antioxidants that protect cells from oxidative damage. Refining strips approximately 60–70% of tocopherol content.
- Phytosterols: Plant compounds that are structurally similar to cholesterol and compete with it for absorption in the digestive tract. Cold pressed peanut oil retains substantially higher phytosterol levels than refined versions.
- Natural flavour compounds: The roasted, nutty character of genuine cold pressed peanut oil comes from pyrazines and other aromatic compounds formed during the press. These are not merely pleasant — they are markers that the oil has not been through deodorisation, which uses steam at temperatures above 200°C.
The Refining Process — What They Don't Tell You
The vast majority of peanut oil sold in India — in plastic pouches, in branded bottles, at competitive prices — is refined oil. Refining is a multi-stage industrial process that transforms raw pressed oil into a product with a longer shelf life, neutral flavour, and higher smoke point. It is also a process that systematically removes most of what made the oil nutritionally interesting.
The stages of refining tell the story clearly:
Degumming: Phospholipids are removed using water or acid treatment. These compounds — which include lecithin — have emulsifying properties and nutritional value. They are extracted and sold separately to the food industry.
Neutralisation (refining): Free fatty acids are removed using caustic soda (sodium hydroxide). This step also removes colour pigments, some vitamins, and other minor components. The resulting "soapstock" is a waste product.
Bleaching: The oil is treated with bleaching earth or activated carbon to remove remaining colour compounds, oxidation products, and trace metals. Temperature during this stage typically reaches 90–120°C.
Deodorisation: Steam is injected into the oil at temperatures between 180°C and 270°C under vacuum conditions. This removes volatile compounds responsible for flavour and odour — including the pyrazines that give cold pressed peanut oil its characteristic roasted smell. It also removes most remaining tocopherols and can produce trans fatty acids as a by-product.
What you have at the end is a chemically clean, shelf-stable, flavour-neutral oil that bears little biochemical resemblance to what came out of the peanut. It is not dangerous. But the claim that it is nutritionally equivalent to cold pressed oil is not accurate.
The Cholesterol Scare — What the Evidence Actually Shows
In the 1990s and 2000s, a combination of government dietary guidelines and aggressive marketing by refined vegetable oil companies shifted Indian kitchens away from traditional fats — ghee, cold pressed groundnut oil, coconut oil — and towards refined oils marketed as "heart healthy" or "cholesterol free."
The cholesterol-free claim deserves scrutiny. All plant-derived oils are naturally cholesterol-free. This is a fact about plant biology, not a feature of the refining process. Labelling refined sunflower oil as "cholesterol free" implies — without saying so — that traditional peanut oil contains cholesterol. It does not. No plant oil does. That label is a marketing tactic, not a nutritional distinction.
The actual research on peanut oil and cardiovascular health tells a different story. A study published in the Journal of Nutrition found that a diet enriched with peanut oil significantly reduced total cholesterol and LDL cholesterol compared to a control diet, while maintaining HDL levels. The oleic acid content — which is well preserved in cold pressed peanut oil — is the same monounsaturated fatty acid credited with the cardiovascular benefits of olive oil.
The shift away from traditional cold pressed groundnut oil in Indian cooking was not primarily driven by evidence that groundnut oil was harmful. It was driven by marketing budgets.
Traditional Use — What Generations of Indian Cooks Knew
Cold pressed groundnut oil has been the primary cooking fat across large parts of India for centuries. In Gujarat and Rajasthan it was the default — used for everything from tempering to deep frying to preservation. In Maharashtra it sits alongside coconut oil depending on region and community. In Andhra Pradesh it is fundamental to the flavour profile of the cuisine.
Traditional Indian cooks understood something that nutritional science is now formalising: the oil you cook with is not a neutral delivery vehicle. It is an ingredient. The flavour compounds in cold pressed peanut oil become part of the dish. A Gujarati undhiyu made with refined oil and one made with cold pressed groundnut oil are not the same dish.
Ayurvedic texts reference taila (oil) preparations using groundnut as a base for both culinary and therapeutic applications. The concept of sneha — oiliness or unctuousness — in Ayurveda encompasses not just fat content but the full bioactive character of the oil. Cold pressed oil and refined oil would not be considered equivalent preparations within this framework, and for once, the traditional distinction aligns with what modern chemistry confirms.
How to Cook With Cold Pressed Peanut Oil
Smoke point: Cold pressed peanut oil has a smoke point of approximately 160°C — lower than refined peanut oil (approximately 230°C) but entirely sufficient for most Indian cooking techniques including tadka, sautéing, and moderate-temperature frying. For very high heat applications — deep frying at sustained temperatures above 180°C — refined oil is technically more stable. For everything else, cold pressed is appropriate and preferable.
Tadka and tempering: This is where cold pressed peanut oil is at its best. The flavour compounds activate and bloom into the hot oil, becoming the aromatic base of the dish. Use medium heat, not maximum flame. The oil is ready when it shimmers — you do not need it smoking.
Dals and sabzis: Cold pressed peanut oil adds a depth to simple dal that refined oil cannot replicate. The nutty character integrates with cumin, mustard seeds, and curry leaves in a way that has been part of regional Indian cooking for generations.
Marinades and dressings: Cold pressed peanut oil works well in cold applications — as a base for marinades, in chutney preparations, or drizzled over salads. In cold use its flavour is most pronounced and its nutritional compounds are fully intact.
Storage: Cold pressed oil has a shorter shelf life than refined oil because its natural antioxidants, while protective, are not as stable as synthetic antioxidants added to refined products. Store in a cool, dark place. Use within 6 months of opening. The dark glass bottle matters — light accelerates oxidation.
Allergy note: Peanut oil, including cold pressed peanut oil, contains peanut proteins that can trigger allergic reactions in individuals with peanut allergy. Highly refined peanut oil has most proteins removed through processing, which is why some people with peanut allergies can tolerate it. Cold pressed peanut oil is not appropriate for individuals with peanut allergy. This is not a reason to avoid it — it is information.
The Adulteration Problem — What You're Actually Buying
India has a documented adulteration problem in edible oils. The Food Safety and Standards Authority of India (FSSAI) has in multiple years identified significant percentages of oil samples as adulterated or mislabelled. Peanut oil is among the most commonly adulterated, typically with cheaper refined oils — palm, soybean, or cottonseed — that are not disclosed on the label.
The incentive is straightforward: peanut oil commands a premium price. Diluting it with a cheaper oil that has similar colour and viscosity is difficult to detect without laboratory testing. The buyer — particularly one buying on price — has no way to know.
What genuine cold pressed peanut oil should smell and taste like: Distinctly nutty, with a roasted character. Not neutral. Not mild. If you open a bottle of "cold pressed peanut oil" and it smells like nothing, it has either been refined (removing the aroma compounds) or adulterated with a neutral oil. Neither is what was advertised.
What to look for: Cold pressed stated clearly on the label. Dark glass bottle. Short ingredient list — the only ingredient should be peanuts. A production date and batch number indicating small-batch processing. A smell that is unmistakably peanut.
The Bottom Line
Cold pressed peanut oil is not a new product. It is the original product. It is what Indian grandmothers cooked with before the refined oil industry arrived with its marketing budgets and its cholesterol-free claims.
The science supports it. The fatty acid profile is favourable. The retained compounds — resveratrol, tocopherols, phytosterols — have documented biological activity. The flavour is incomparably better. And the adulteration and refining problems in the commercial peanut oil market mean that paying a premium for verified cold pressed oil is, in this case, directly connected to getting what you are paying for.
Your grandmother's kitchen smelled like this oil. There was a reason for that.
Hesthetic Cold Pressed Peanut Oil is single-batch pressed below 50°C from double sortex cleaned groundnuts. No heat. No solvents. No dilution. Bottled in dark glass the same day as pressing.
References
The following published research informed the factual claims in this article. We encourage you to read them.
- Feldman EB, et al. "The effects of peanut oil on cardiovascular risk factors in healthy adults." Journal of Nutrition. 1999.
- Awad AB, et al. "Phytosterols as anticancer dietary components: evidence and mechanism of action." Journal of Nutrition. 2000.
- Burns J, et al. "Plant foods and herbal sources of resveratrol." Journal of Agricultural and Food Chemistry. 2002.
- Cert A, et al. "Effects of refining on the minor components of edible oils." Grasas y Aceites. 2000.
- FSSAI Annual Report on Food Safety Surveillance. Food Safety and Standards Authority of India. 2022.
- Matthäus B. "Oil technology." Peanuts: Genetics, Processing and Utilization. AOCS Press. 2016.
This article is for informational purposes only. It does not constitute medical advice. Individuals with peanut allergy should not consume cold pressed peanut oil. Consult a qualified healthcare professional before making changes to your diet or supplement routine.