Most Indian families switch cooking oils based on price or a doctor's advice. Very few switch based on knowing what actually happens between the seed and the bottle. This article fixes that. Every comparison below is factual, verifiable, and written without marketing language. Read it once and you will never look at a cooking oil label the same way.
How Each Oil Is Made
This is where everything starts. The process determines everything that follows.
Cold Pressed Oil
Seeds are placed in a traditional wooden press called a Kachi Ghani. Slow mechanical pressure extracts the oil. The temperature during this process stays below 45 to 50 degrees Celsius because the wood absorbs the heat generated by friction.
No chemicals are added. No heat is applied externally. The oil that comes out is the direct result of the seed being pressed. Nothing more.
Refined Oil
Seeds are treated with hexane, a petroleum-derived solvent, which dissolves the oil out of the seed at higher yield than mechanical pressing. The oil is then degummed, neutralised with an alkaline solution, bleached using clay and acid, and deodorised at temperatures between 200 and 270 degrees Celsius.
At the end of this process, synthetic antioxidants are added back to restore shelf stability.
That is what "refined" means in practice.
The Side by Side Comparison
| Extraction Method | Sattva Origin Oil | Refined Oil |
|---|---|---|
| 🏺 Extraction method | Wood pressed | Chemical solvent |
| 🌡️ Extraction temperature | Below 45°C | Above 200°C |
| 🧪 Vitamin E preserved | ✓ Full retention | ✗ Mostly destroyed |
| ✨ Natural antioxidants | ✓ Retained | ✗ Removed |
| 🚫 Trans fats | ✓ Zero | ✗ Often present |
| ⚗️ Chemical residues | ✓ None | ✗ Possible hexane traces |
| 🌿 Natural aroma & flavour | ✓ Preserved | ✗ Deodorised away |
| 🔬 Lab tested per batch | ✓ 4 independent tests | ✗ Not typically |
| 📍 Origin traceable | ✓ Farm to bottle | ✗ Blended sources |
What This Means for Your Family's Health
Vitamin E
This is the most important nutrient comparison. Vitamin E (tocopherol) is a fat-soluble antioxidant that protects cells from oxidative damage, supports immune function, and contributes to cardiovascular health.
It is also heat-sensitive. Above 50 degrees Celsius it begins to degrade. At the temperatures used in industrial deodorising, it is nearly eliminated.
Cold pressed groundnut oil retains over 90 percent of the natural tocopherol content of the seed. Refined oil retains approximately 20 to 22 percent. The synthetic antioxidants added back during refining are not equivalent to natural Vitamin E in their nutritional function.
Resveratrol
Groundnut oil naturally contains resveratrol, the same polyphenol associated with cardiovascular health that is found in red wine. It is documented in food science research for anti-inflammatory properties.
It survives cold pressing. It does not survive industrial refining. Refined groundnut oil contains none.
Phytosterols
These are plant compounds that compete with cholesterol for absorption in the digestive tract. They are present in the groundnut seed, they survive cold pressing, and they are removed during the bleaching stage of industrial refining.
Trans Fats
Refined oil carries a small but real risk of trans fat formation during the deodorising process, where unsaturated fatty acids can be geometrically altered by prolonged exposure to temperatures above 200 degrees Celsius.
Cold pressing produces no trans fats because no heat above 50 degrees Celsius is applied at any stage.
The Taste and Aroma Difference
This is the one that families notice immediately after switching.
Cold pressed groundnut oil has a warm, distinctly nutty aroma. When it hits a hot tadka pan, the kitchen smells the way cooking used to smell. This is not nostalgia. It is the intact volatile aroma compounds activating at the right temperature.
These compounds are also antioxidants. They serve a nutritional function in addition to a flavour one.
Refined oil is deodorised at 200 to 270 degrees Celsius specifically to eliminate smell and achieve a neutral taste. The neutrality is the evidence of what was removed. Some refined oils have synthetic fragrance added back afterward.
If your current cooking oil has almost no smell, it has been deodorised.
The Smoke Point Question
Refined oil typically has a higher smoke point than cold pressed oil because the compounds that would otherwise smoke at lower temperatures have been removed through processing.
Cold pressed groundnut oil has a smoke point of approximately 160 degrees Celsius. Cold pressed sesame oil reaches approximately 177 degrees Celsius.
For everyday Indian cooking, this covers the full range of daily use:
Daily tadka between 120 and 150 degrees. Vegetable sautéing between 130 and 160 degrees. Parathas and tawa cooking between 140 and 160 degrees. Shallow frying between 145 and 160 degrees.
For deep frying above 180 degrees, cold pressed oil is not the right choice and we say so clearly. For everything else Indian families cook daily, the smoke point difference is not the relevant factor. The nutrition difference is.
The Cost Comparison
Cold pressed oil costs more. There is a direct reason for this.
Cold pressing extracts 20 to 25 percent oil from seeds. Industrial refining using hexane extracts 35 to 40 percent. It takes 3 kilograms of groundnuts to produce 1 litre of cold pressed groundnut oil. The lower yield, slower process, and independent lab testing all contribute to a higher price.
The comparison to make is not cold pressed oil versus refined oil at the same price point. The comparison to make is what you receive nutritionally per rupee spent.
The Transparency Difference
Most cooking oil brands cannot tell you the specific batch your bottle came from, what lab test results that batch produced, or where exactly the seeds were sourced.
This is not a criticism. It is the current standard of the industry.
Sattva Origin publishes four independent lab test results per batch, linked by the batch number on your bottle. Quality, nutrition, GMO content, and shelf life are tested independently by a third party before any bottle ships. The results are publicly available.
This is what verifiable cold pressed oil looks like versus an unverifiable claim on a label.
The Practical Summary
Choose cold pressed oil if: You cook at medium heat daily and want the full nutritional value of the oil you use every day.
Choose refined oil if: You deep fry regularly above 180 degrees and price is the primary consideration.
The honest answer for most Indian families: The daily cooking that happens in most Indian homes, dal, sabzi, parathas, shallow frying, chutneys, rice dishes, sits comfortably within the smoke point range of cold pressed oil. The nutritional difference is real, documented, and cumulative across every meal cooked with the oil.
Switching is not a dramatic lifestyle change. It is using better oil in the same meals you already cook.