The Best Oils for Seasoning a Griddle (Tested)

The internet has strong opinions about griddle seasoning oils, most of them only partially correct. Flax oil produces the hardest seasoning but smells terrible during application. Avocado oil works fine but costs 3-4x more than canola. “Crisco is great” is a thing your grandfather said and was sometimes right.

This is the realistic comparison: what actually works, what the trade-offs are, and what to pick based on your situation.

What seasoning oil needs to do

A griddle seasoning oil performs three jobs:

1. High smoke point — has to be heated past its smoke point repeatedly without breaking down catastrophically
2. Polymerization — has to convert from liquid to a hard solid coating when heated
3. Stability over time — the resulting seasoning has to be hard, dark, durable, and not go rancid

Different oils do these jobs differently. The differences matter, but they’re smaller than online debates suggest.

The oils that work

Oil	Smoke point	Polymerization	Smell during seasoning	Cost
Flax oil	225°F (low)	Excellent (hardest seasoning)	Terrible	$$$$
Avocado oil (refined)	520°F	Good	Mild	$$$
Canola (refined)	400°F	Good	Mild	$
Grapeseed	420°F	Good	Mild	$$
Vegetable shortening (Crisco)	360°F	Excellent	Mild	$
Soybean	460°F	Good	Mild	$
Corn oil (refined)	440°F	Adequate	Mild	$

Notes on the table:

• Flax oil’s low smoke point looks bad on paper but works because the polymerization happens at much lower temperatures than typical cooking. Flax oil applied at 350°F polymerizes effectively.
• Avocado and refined canola are the practical workhorses for most owners.
• Crisco is widely overlooked but produces a remarkably hard seasoning. The food-grade saturated fats polymerize beautifully.

What I actually use

For routine re-seasoning: refined canola or avocado oil. They’re available everywhere, polymerize predictably, don’t smell bad during application, and produce seasoning that holds up to years of cooking.

For deep restoration on a stripped or rusted griddle: flax oil, despite the smell. The harder seasoning is worth the temporary olfactory cost.

For emergency seasoning when nothing else is on hand: any high-smoke-point cooking oil produces an acceptable seasoning. Don’t agonize over the choice in the moment.

What to avoid

Olive oil. Smoke point is too low (around 375°F for refined; 320°F for extra-virgin). Will burn before it polymerizes properly, creating a sticky residue rather than a hard coating. Don’t use on griddles.

Butter. Milk solids don’t polymerize well; the resulting seasoning is uneven and often gummy. Save butter for cooking, not seasoning.

Coconut oil. High saturated fat content sounds promising but coconut oil produces an inconsistent seasoning bond. Acceptable in a pinch; not the first choice.

Flavored oils (chili oil, garlic oil, etc.). The flavor compounds don’t polymerize cleanly and can leave residual flavors that transfer to subsequent cooks.

Vegetable oil blends without specified composition. Most “vegetable oil” is soybean or canola or a blend; it works fine, but if you want predictable results, pick a single-source oil.

The flax oil debate

Flax oil produces objectively the hardest griddle seasoning. The polymer chains it forms are denser and more crosslinked than other oils. This is real and measurable.

The trade-offs:

• It smells like a paint factory during seasoning. Outdoors only, no exceptions.
• It’s expensive. A bottle of food-grade flax oil costs 3-5x what canola costs for the same volume.
• Refrigeration required after opening. Goes rancid quickly at room temperature. Most users buy small bottles to use up before going bad.
• The hard seasoning advantage diminishes after the first few coats. Subsequent cooking with regular oils essentially overwrites the flax foundation.

For a deep restoration where you want maximum seasoning durability, flax is worth it. For routine touch-ups, the convenience of canola or avocado wins out.

Application matters more than oil choice

Here’s the secret most “best oil for seasoning” articles miss: the oil itself matters less than how you apply it.

A perfect oil applied too thick produces failed seasoning. A budget oil applied correctly produces excellent seasoning.

The right application:

• Start with a clean, hot griddle
• A small amount of oil — about a tablespoon for a 36-inch surface
• Spread until the plate looks dull-shiny, not wet
• Wipe with a paper towel until no visible oil remains
• Heat until smoking stops completely
• Repeat 3-6 times for new seasoning, 1-3 times for re-seasoning

If you’re doing this consistently, any of the suitable oils above will produce a working seasoning. If you’re not, the most expensive oil in the world won’t save the result.

Cost-per-application comparison

For perspective on the cost differences:

• Canola (16 oz, $5): roughly 50 seasoning applications. $0.10 per session.
• Avocado (16 oz, $15): roughly 50 applications. $0.30 per session.
• Flax (8 oz, $25): roughly 25 applications. $1.00 per session.

Even flax oil is a $1 investment per re-seasoning. The cost difference matters less than people make it.

Frequently asked questions

What's the absolute best oil for griddle seasoning? +

Flax oil produces the hardest seasoning, full stop. Avocado oil and refined canola are practical alternatives that produce excellent (if slightly less hard) seasoning. Crisco is underrated. Pick based on your priorities: best result = flax; best convenience = canola or avocado.

Can I mix oils when seasoning? +

Don't mix during a single application — the oils have different smoke points and polymerization behaviors that don't always combine well. You can use different oils for different layers (flax for foundation, canola for routine), and that works fine.

Why does my seasoning end up sticky no matter what oil I use? +

Almost always too much oil per application. The plate should look dull-shiny, not wet. Excess oil pools, doesn't fully polymerize, and creates the sticky layer you're describing. Wipe more off before heating; less is more.

Is olive oil really that bad for griddle seasoning? +

Yes — for the seasoning process specifically. The smoke point is below the temperature where good polymerization happens. Use olive oil for cooking food on the griddle (where smoke point is less critical at moderate cooking temps); use a higher-smoke-point oil for the seasoning steps.

Can I use the same oil to season as I cook with? +

Yes — and many owners do. Cooking with avocado oil and seasoning with avocado oil keeps things simple. Match where you can.

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