Cold-pressed canola oil is oil extracted from canola seeds using mechanical pressure at low temperature, without chemical solvents or industrial heat. The oil flows naturally from the seed when compressed by a screw press operating below 50 degrees Celsius. No hexane is used. No refining, bleaching, or deodorizing. What comes out is the oil as it exists inside the seed, nothing added and nothing removed.
That definition matters because most oils on Pakistani shelves do not fit it.
What Cold Pressing Actually Means
The term cold pressing describes a specific extraction method, not a marketing label. In genuine cold pressing, the seed is mechanically compressed and oil is released through pressure alone. The temperature of the oil during extraction stays below 50 degrees Celsius, which is the threshold above which the natural fatty acids and heat-sensitive nutrients in the seed begin to break down.
Most commercial canola oil production does not use this method. It uses hexane solvent extraction followed by heat refining at temperatures above 200 degrees Celsius. The end product looks identical to cold-pressed oil in a bottle. The nutritional profile is not.
Step 1: Seed Selection and Sourcing
Asaal Organics sources its canola seeds from farms in Punjab, Pakistan. Before pressing begins, seeds are selected for quality. This step matters more than most people realize. Seed quality directly determines oil quality. Low-grade or poorly stored seeds produce oil with higher free fatty acid content, shorter shelf life, and weaker flavor. There are no shortcuts at this stage that do not show up later in the oil.
Step 2: Cleaning the Seeds
Before the seeds enter the press, they go through a mechanical cleaning process to remove dust, plant debris, and any foreign material that came in from the farm. No chemical treatments are applied at this stage.
Clean seeds press more efficiently. They also produce oil that requires less filtration afterward, which matters for keeping the process as minimal as possible.
Step 3: Pressing Below 50°C Using a Screw Press
The screw press, also called an expeller press, is the core of cold-press production. Cleaned seeds are fed into the press continuously. Inside, a rotating screw mechanism applies increasing pressure as the seeds move through a tightening barrel, compressing them until the oil is forced out through small perforations in the barrel wall. The pressed seed material, called the oil cake, exits separately.
At Asaal Organics, the screw press operates at a speed and feed rate that keeps the oil temperature below 50 degrees Celsius throughout extraction. This is a controlled constraint, not an automatic result. Mechanical pressing generates heat through friction. Keeping that heat below 50 degrees requires deliberate management of press speed and throughput.
Below 50 degrees Celsius, the oil retains its natural omega-3 fatty acids, vitamin E, and antioxidant compounds. These begin to break down above 40 to 60 degrees Celsius. At the temperatures used in industrial refining, above 200 degrees Celsius, they are largely destroyed.
What comes out of the screw press at this stage is raw, unrefined canola oil mixed with fine suspended seed particles. It is slightly cloudy and requires filtration before it is ready.
Step 4: Natural Settling and Filtration
This is the stage that most cold-press operations either rush or skip entirely.
After pressing, the raw oil is transferred to sealed settling tanks where it rests undisturbed for multiple days. During this period, the fine suspended seed particles gradually sink to the bottom through gravity alone. No filter paper, no chemical clarification agents, no centrifuge. Gravity and time.
After multiple days, the clear oil sitting above the settled sediment is carefully separated. This is the oil that goes into the bottle.
Multiple days is a long time in production terms. It requires physical space for tanks, inventory patience, and a commitment to not accelerating a process that works correctly when left alone. The reason it is worth doing is that the oil arrives at the bottle in the same structural condition it was in when it left the press. Nothing about the lipid molecules has been disturbed by mechanical stress or chemical treatment.
Step 5: Bottling and Sealing
The settled and separated oil is bottled and sealed. No preservatives are added at this stage. No synthetic antioxidants to extend shelf life. The vitamin E naturally present in cold-pressed canola oil functions as a natural preservative. Sealed bottles are stored away from light and heat.
Cold-pressed canola oil bottled this way remains fresh for up to 12 months from the pressing date when stored sealed in a cool, dark location. Once opened and with the cap kept tightly sealed after each use, the oil stays fresh for 4 to 6 months.
How This Differs from Refined Oil Production
For comparison, here is how most canola oil on Pakistani supermarket shelves is made.
Seeds are crushed and then soaked in hexane solvent, a petroleum-derived chemical that bonds to oil molecules and draws the oil out of the seed material. The solvent is then evaporated off under heat, leaving crude oil behind. This crude oil then goes through four additional chemical stages: degumming (removing phospholipids with water or acid), neutralization (removing free fatty acids with caustic soda), bleaching (removing pigments and remaining impurities with bleaching clay), and deodorization (removing flavor and odor compounds with steam at temperatures of 200 to 230 degrees Celsius).
The hexane is removed before packaging and does not appear in the final product in measurable quantities. But the heat and chemical exposure across all five stages permanently alters the oil's fatty acid structure and strips the natural nutrients. This cannot be corrected after the fact.
The refined oil that results is clear, odorless, and nutritionally stripped. It is also stable, cheap to produce, and looks identical to cold-pressed oil in a bottle.
Why the Process Matters More Than the Label
The word organic on an oil label describes the seed's growing conditions. It says nothing about how the oil was extracted. An oil can be certified organic and still be refined with hexane and heat. The label and the process are separate things.
Cold pressing below 50 degrees Celsius using a screw press, followed by days of natural gravity settling, is a specific, verifiable process. It produces oil with a measurable fatty acid profile, detectable vitamin E content, and no hexane residue. Any genuine cold-pressed canola oil can be laboratory tested for these characteristics. It will pass. Most supermarket canola oil will not pass the same tests.
When you understand the process, the price difference stops being a question.
Frequently Asked Questions
Does cold-pressed canola oil taste different from refined canola oil? Yes. Cold-pressed canola oil has a mild, slightly nutty flavor that comes from the seed itself. Refined canola oil is tasteless because the deodorization stage removes all flavor compounds. The natural flavor in cold-pressed oil is a direct indicator that the oil has not been stripped through high-heat processing.
Why does cold-pressed oil sometimes look slightly cloudy? Minor cloudiness or fine sediment at the bottom of the bottle is normal in cold-pressed oils and is not a defect. It indicates the oil has not been chemically bleached or filtered through industrial processes. Refined oils are perfectly clear because clarity is a result of bleaching, not of purity.
How should I store cold-pressed canola oil? Store in a cool, dry location away from direct sunlight. Keep the cap tightly sealed after each use. No refrigeration is needed. Properly stored, opened cold-pressed canola oil stays fresh for 4 to 6 months.
Is multiple days of settling time normal for cold-pressed oil? It varies by producer. Some operations use mechanical filtration to speed the process significantly. Natural gravity settling takes longer but does not subject the oil to additional mechanical stress. At Asaal Organics, multiple days of natural settling is the standard before any oil is bottled.
