What Is Cold-Pressed Groundnut Oil? | The Natural Peanut Oil

Cold-pressed groundnut oil is simply peanut oil by another name. The “cold-pressed” label tells you how it was made: the oil comes from mechanically pressing groundnuts at low temperatures, usually below 45°C–50°C, with no added heat and no chemical solvents. That gentle process keeps the oil unrefined, so it keeps the golden color and nutty aroma of the raw seed. Many people buy it specifically because it’s one of the least processed cooking oils available, but there are a few things worth knowing before you cook with it, especially if peanut allergies are a concern in your household.

Why Is It Called Groundnut Oil Instead Of Peanut Oil?

Groundnut and peanut are the same crop, and both names point to the same oil. In most of the world, including India, Africa, and parts of Asia, the legume is called a groundnut because it matures underground, so the oil takes that name. In the United States, the same product is almost always labeled peanut oil. The FDA’s food-substance records list peanut oil as a recognized food substance and note its alternate names, so you may also see it called arachis oil, earthnut oil, or katchung oil depending on the region or manufacturer.

When you’re shopping, cold-pressed groundnut oil and cold-pressed peanut oil are the same product, just labeled for different markets. The processing method matters far more than the name on the bottle.

How Is Cold-Pressed Groundnut Oil Made?

Cold pressing is a mechanical extraction process that relies on pressure instead of heat or chemicals. The groundnuts are cleaned, then pressed through a machine that squeezes the oil out of the seed at a low temperature. Most producers keep the pressing temperature below 45°C–50°C, which is what earns the “cold” in the name. Because there’s no chemical solvent involved and no high heat, the oil stays in its natural, unrefined state.

That’s the key difference from refined peanut oil, which undergoes additional processing to remove color, flavor, and allergens. Cold-pressed groundnut oil keeps the nutty taste and golden color, but it also keeps more of the peanut proteins that can trigger allergic reactions.

What Are The Common Uses And Benefits?

Cold-pressed groundnut oil is a versatile cooking oil. Its moderate smoke point and nutty character make it a good fit for sautéing, pan-frying, and stir-frying, where it adds flavor rather than just cooking fat. It also works well as a finishing oil, drizzled over vegetables or salads to bring out that roasted-nut note. Beyond cooking, FDA records list technical uses for peanut oil as a flavor enhancer, nutrient supplement, solvent or vehicle, and texturizer in processed foods.

The main appeal is the unrefined, natural character. People who prefer minimal processing in their food choose cold-pressed groundnut oil over refined vegetable oils because it’s closer to what you’d get by pressing peanuts at home. The trade-off is a stronger flavor and a shorter shelf life, since unrefined oils go rancid faster than their refined counterparts.

If you’re ready to buy, our roundup of the best cold-pressed groundnut oil options compares top brands by processing method, packaging, and value for money.

Is Cold-Pressed Groundnut Oil Safe For People With Peanut Allergies?

No, and this is the caution that matters most. The USDA’s Food Safety and Inspection Service states that only highly refined peanut oil is exempt from allergen labeling requirements. Cold-pressed groundnut oil is typically not highly refined, and the low-temperature mechanical process doesn’t remove the peanut proteins that trigger allergic reactions. If you or anyone in your household has a peanut allergy, treat cold-pressed groundnut oil as a real risk.

People sometimes assume “natural” or “unrefined” means allergen-free, but for peanut oil, the opposite is closer to the truth. Refining is what removes the allergens; cold pressing preserves the oil’s natural character, including the proteins. If you’re cooking for someone with a peanut allergy, check the label carefully and choose a highly refined peanut oil instead, or skip peanut oil entirely.

FAQs

What’s the difference between cold-pressed and expeller-pressed groundnut oil?

Both methods use mechanical pressure to extract oil, but cold pressing keeps the temperature below 45°C–50°C, while expeller pressing allows higher heat from friction during extraction. Cold-pressed oil retains more of its natural flavor and nutrients, while expeller-pressed oil may have a slightly toastier taste. Either way, neither uses chemical solvents.

Does cold-pressed groundnut oil need to be refrigerated?

Refrigeration isn’t required, but it can extend the shelf life of this unrefined oil. Store it in a cool, dark cupboard away from direct sunlight and heat. You’ll know it’s gone rancid when it smells stale or musty rather than nutty. If you use it slowly, refrigerating it will keep it fresh for months longer.

Can I use cold-pressed groundnut oil for deep frying?

You can, but it’s not the best choice. Cold-pressed groundnut oil has a lower smoke point than refined peanut oil, so it can burn at high frying temperatures. It’s better suited for sautéing, light frying, and finishing dishes where its nutty flavor shines. For deep frying, a refined peanut oil with a higher smoke point is a safer option.