Refining and grade
Refining removes compounds that can lower smoke point. “Olive oil,” “extra virgin,” “virgin,” and refined products should not be treated as interchangeable.
Cooking Oil Smoke Point Finder
Oil and temperature
Approximate references, not guarantees. Refining, grade, freshness, storage, food particles, and prior heating can change when an oil smokes. Check the bottle or producer specification when available.
Choose the closest grade or enter a product-specific smoke point.
Use the oil temperature—not an oven, pan surface, or food temperature.
The tool does not guess a numerical penalty for used oil.
Enter the value printed by the producer or another trusted source.
Presets are starting references from USDA examples, not universal recipe settings.
Private by design: the tool uses client-side JavaScript only. Copy and download run only when you choose them.
Temperature comparison
Ready to compare
Choose an oil and temperature
The result will compare your planned oil temperature with an approximate smoke-point reference.
Reference smoke point—
Planned oil temperature—
Reference margin—
25°F / 14°C buffer target—
This planning buffer is a practical comparison assumption, not a regulatory safety limit. A recipe, appliance manual, product label, and direct thermometer reading take priority.
Advertisement
How to Use the Smoke Point Finder
- Read the oil label. Identify both the oil and its grade. Refined and unrefined versions can behave very differently.
- Enter the planned oil temperature. Use the recipe, package, or appliance instruction. The 320°F, 350°F, and 375°F buttons are quick USDA-based examples.
- Review the reference margin. The tool subtracts the planned temperature from the listed smoke point. For a published range, it compares against the low end first.
- Use a suitable thermometer. Burner settings and pan-surface readings are not the same as the bulk oil temperature.
- Watch the oil continuously. If it smokes unexpectedly, reduce or stop the heat. Do not treat a chart value as permission to keep heating.
- Check food doneness separately. Remove food before checking its internal temperature with a clean food thermometer.
Hot-oil safety: Keep water away from hot oil, dry wet food before lowering it carefully, never leave frying unattended, and never pour water on a grease fire. Turn off heat if safe, cover a small pan fire with a metal lid, use a suitable kitchen fire extinguisher, and call emergency services when needed.
Cooking Oil Smoke Point Chart
These numbers preserve the form used by each source: fixed USDA approximations, a published olive-oil range, and a minimum reported for refined avocado oil. They are comparison references, not batch tests.
| Oil | Approximate smoke point | Reference basis |
|---|---|---|
| Refined avocado | At least 482°F / 250°C | Peer-reviewed extraction and refining review |
| Peanut | 450°F / 232°C | USDA FSIS frying guide |
| Safflower | 450°F / 232°C | USDA FSIS frying guide |
| Soybean | 450°F / 232°C | USDA FSIS frying guide |
| Grapeseed | 445°F / 229°C | USDA FSIS frying guide |
| Canola | 435°F / 224°C | USDA FSIS frying guide |
| Corn | 410°F / 210°C | USDA FSIS frying guide |
| Sesame | 410°F / 210°C | USDA FSIS frying guide |
| Sunflower | 410°F / 210°C | USDA FSIS frying guide |
| Olive oil, grades vary | 347–464°F / 175–240°C | UC Davis Olive Center |
| Refined coconut | 400°F / 204°C | Oklahoma State University Extension |
| Virgin coconut | 350°F / 177°C | Oklahoma State University Extension |
Sources: USDA FSIS, Deep Fat Frying and Food Safety; UC Davis, Olive Oil Myths and Facts; Oklahoma State University Extension, Is Coconut Oil Good for You?; and Satriana et al., Development of Methods Used in the Extraction of Avocado Oil.
Frying Temperature Guide
USDA’s home deep-frying examples demonstrate that the target depends on the food. Use a recipe-specific temperature and measure the food separately for doneness.
| USDA example | Oil temperature | Approximate time | Internal check |
|---|---|---|---|
| Fish fillets | 320°F / 160°C | 3–5 minutes | 145°F / 63°C |
| Shrimp | 320°F / 160°C | 4–6 minutes | Check doneness with a food thermometer |
| Chicken fingers | 350°F / 177°C | 6–8 minutes | 165°F / 74°C |
| Chicken pieces | 375°F / 191°C | 13–20 minutes | 165°F / 74°C |
Times are examples, not timers for every size or appliance. Do not test internal temperature while food is submerged in oil; USDA advises removing it first and using a clean food thermometer.
What the Temperature Margin Means
Reference margin = approximate smoke point − planned oil temperature
The finder labels a margin of at least 25°F (about 14°C) as a comfortable reference margin. A 10–25°F margin is narrow, less than 10°F is very close, and a target at or above the reference is flagged. These bands are transparent planning assumptions created for this comparison; they are not official safety thresholds.
For olive oil, the result uses the bottom of UC Davis’s published range first. A target that lands inside the range is labeled product-dependent because grade, quality, and freshness determine where a particular oil falls. For a custom bottle value, the tool treats the entered number as a fixed reference.
Why an Oil May Smoke Earlier
Age and storage
Heat, light, air, and time can degrade oil. A stale or rancid bottle may not match a fresh reference sample.
Food particles and moisture
Crumbs can burn and create visible smoke before the bulk oil reaches its nominal smoke point. Water can cause violent splattering.
Repeated heating
Reused oil changes with each frying cycle. Unexpected smoke, persistent foam, darkening, thickening, or off odors are reasons to stop using it.
Frequently Asked Questions
What is a cooking oil smoke point?
It is the approximate temperature at which an oil produces a continuous visible smoke and degrades more rapidly. Smoke point is lower than flash point and fire point; it does not predict when oil will ignite.
What temperature is normally used for deep frying?
Many recipes use 350–375°F (177–191°C), while delicate fish and seafood examples may use about 320°F (160°C). Follow the specific recipe, food package, and fryer manual.
Why do smoke point charts disagree?
Grade, refining, free-fatty-acid content, freshness, storage, food particles, testing method, and prior heating all matter. That is why this page labels every number as approximate.
Can extra-virgin olive oil be used for frying?
Some olive oils tolerate frying temperatures, but a single number cannot represent every grade and bottle. UC Davis reports 347–464°F (175–240°C) across olive oils; use a producer specification when possible.
Can frying oil be reused?
Previously heated oil can smoke sooner as it degrades or collects particles. Filtered appearance alone does not restore the oil. Discard it if it smokes unexpectedly, foams, smells rancid, or becomes unusually dark or thick.
Does smoke point tell me when food is safely cooked?
No. Smoke point is an oil property. Food safety requires a separate internal-temperature check with a clean thermometer after the food leaves the oil.
Are my selections stored?
No. The comparison runs locally in your browser. The tool creates a file only if you choose Download plan.