Oil pressed from peanuts, usually refined to a neutral flavour with a smoke point around 450°F (230°C). The traditional choice for deep frying and wok cooking.
What it does in a recipe: A stable, near-flavourless fat that holds up to sustained high heat without breaking down or tasting scorched. Pick the swap that covers that job — the ratios below are written so you can act on them without doing any arithmetic.
Also called: Groundnut oil, Arachis oil
4substitutes
2close matches
Fats & oilscategory
Quick answer
Refined sunflower or safflower oil
1 cup peanut oil = 1 cup refined sunflower or safflower oil
All substitutes, best first
4 ways to replace peanut oil
Refined sunflower or safflower oil
Closest match
1 cup peanut oil = 1 cup refined sunflower or safflower oil
High-oleic refined seed oils have smoke points in the same 440-450°F (225-230°C) band and are equally neutral, so frying behaves identically.
Trade-offNo meaningful difference in a fryer. Both hold up to several rounds of frying before they need replacing.
Allergen checkThis is the standard choice when peanut is the problem. Buy a bottle that names a single source oil rather than a generic blend, check for shared-line statements, and let a clinician set the rules for a diagnosed peanut allergy rather than a recipe site.
Refined avocado oil
Closest match
1 cup peanut oil = 1 cup refined avocado oil
One of the highest smoke points of any culinary oil, around 500°F (260°C), with a mild flavour that stays out of the way.
Trade-offPerforms at least as well and costs considerably more, which matters when a deep fryer needs several litres.
Allergen checkA sound peanut-free option, though avocado oil is sometimes cut with cheaper oils by less scrupulous producers. Buy from a brand you trust, read the label, and confirm anything critical with the manufacturer where an allergy is severe.
Canola or vegetable oil
Reliable
1 cup peanut oil = 1 cup canola or generic vegetable oil
Refined to a similar neutrality with a smoke point around 400-450°F (200-230°C), which covers most deep frying and stir-frying.
Trade-offBreaks down a little faster over repeated frying, so oil in a deep fryer will need changing sooner. Fried food tastes very slightly less clean.
Allergen checkGeneric vegetable oil is a blend whose composition can change between batches and may include peanut or soy. Where peanut allergy is the reason for the swap, choose a bottle labelled with a single named oil and confirm severe cases with the manufacturer.
Corn oil
Reliable
1 cup peanut oil = 1 cup corn oil
A refined oil with a smoke point around 450°F (230°C) and a very mild flavour, long used for commercial frying.
Trade-offA faint corn sweetness comes through in delicate fried food such as fish or doughnuts. In heavily seasoned dishes it is undetectable.
Allergen checkPeanut-free, but corn is a significant allergen for some people even though it is not on the standard top-allergen lists. Read the label and treat any diagnosed allergy as a matter for the person's clinician.
Worth knowing
Highly refined peanut oil has had most of its protein removed and is often excluded from allergen labelling rules, but cold-pressed and roasted peanut oils retain protein and are not safe. No allergic person should be served either on the basis of a general rule.
Cooking around an allergy? Diet tags here describe the ingredient itself, not any particular brand. Processed products change formulation without notice and shared production lines are common, so read the label on everything you use. A severe allergy is a medical matter — confirm with the manufacturer or your clinician rather than relying on a substitution chart.