Can You Use Crisco to Season a Griddle? Pros, Cons & Risks

You can season a griddle with Crisco, but you shouldn’t for the initial seasoning. Crisco is a hydrogenated vegetable shortening, a semi-solid animal-fat substitute, and its chemical structure makes it prone to forming a sticky, gummy polymerized layer instead of the hard, slick finish you need. For a lasting coat, use a liquid, high-smoke point oil like peanut, corn, or refined vegetable oil.

That difference between fat types is the whole game. Seasoning isn’t just wiping on oil and heating it. It’s a chemical reaction called polymerization, where heat breaks the oil’s molecules and reassembles them into a hard plastic-like coating. The wrong fat starts that reaction but never finishes it cleanly.

What follows: the science behind why Crisco fails, the exact oils every major manufacturer specifies, and the step-by-step method that builds a surface eggs slide off of. We’ll also cover what to do if your griddle is already sticky from the wrong fat.

Key Takeaways

• Crisco is prohibited for initial seasoning by manufacturers like Napoleon because its hydrogenated, semi-solid state creates a tacky polymer that attracts food and carbon.
• Polymerization requires a high smoke point, peanut, corn, and refined vegetable oils (450°F+) cross-link into a durable coating; Crisco’s smoke point is lower and inconsistent.
• “Thin coats” means almost dry, if you see pooling oil, you’ve used too much and will create a gummy residue, the most common seasoning mistake.
• Stainless steel griddles near pools or coasts corrode faster; seasoning there is a sacrificial layer that needs refreshing every few months.
• Fix a sticky Crisco coat by scrubbing with vinegar and water, then completely re-seasoning with a proper high-smoke point oil.

The 3-Part Science of Polymerization

Seasoning is not a layer of baked-on grease. It’s a manufactured coating. When you heat oil past its smoke point on bare metal, you trigger a three-stage chemical process: breakdown, bonding, and cross-linking.

First, the heat fractures the oil’s triglyceride molecules. This releases free fatty acids. Those acids then bond directly to the metal surface at a molecular level, this is the foundational layer. Finally, with continued heat, the remaining carbon chains cross-link with each other, forming a matrix of polymers. This matrix is the hard, slick coating you’re after.

This polymerization process is why smoke point matters. An oil must withstand high heat long enough for the cross-linking to complete. If it burns too quickly, it deposits carbon soot instead of forming a stable polymer.

Crisco’s problem is its physical state and formulation. As a hydrogenated shortening, it’s designed to be solid at room temperature. When heated, it melts and can polymerize, but it often does so unevenly. The result is a coating that feels tacky and attracts carbonized food bits. A liquid oil with a consistent, high smoke point flows thinly, heats evenly, and cross-links into a uniform sheet.

What Oils Manufacturers Actually Specify

Manufacturer manuals are the primary source for this. They’ve tested their specific metals and finishes. The consensus is unambiguous: use liquid vegetable oils.

Brand / Model	Recommended Oil	Quantity for Initial Coat	Key Prohibition / Note
Napoleon Freestyle Griddle	Neutral, high smoke point vegetable oil	2-3 tablespoons	“Do not use animal fats for your first seasoning.”
Waring Commercial WGR240X	Corn or peanut oil	About 1 tablespoon	Process takes 1–1.5 hours; repeat 8 times with decreasing oil.
Wolf (Sub-Zero)	Peanut or vegetable oil	A small amount	Heat until smoking, then turn off and cool.
GDE130N Griddle	Vegetable oil	2 teaspoons	Clean with soapy water, then a 1:2 vinegar/water rinse first.

The Wolf recommendation is particularly telling. Their support guide explicitly states peanut or vegetable oil are chosen “because of their high smoke points.” It also warns that using too much oil of any kind “can cause sticking and gummy issues.”

Crisco shortening is absent from every official list. The Napoleon manual’s direct prohibition against animal fats for the first seasoning extends to similar semi-solid fats like shortening, the risk of a failed polymer is the same.

Can You Use Crisco at All? The Specific Risks

If you’re out of oil and have a can of Crisco, you can technically use it. The coating it creates might work for a cook or two. But understand the specific trade-offs you’re accepting.

The primary risk is a sticky, non-durable finish. A hydrogenated fat polymerizes differently. The coating often remains slightly porous and soft, which means it won’t shed food effectively. You’ll notice eggs or pancakes tearing when you flip them. This sticky layer also traps carbon from subsequent cooks, leading to patchy black spots that flake off.

Where this goes sideways: Using Crisco on a brand-new griddle. The first seasoning layer is the most critical, it bonds directly to the bare metal. A weak Crisco base makes every layer on top of it weak. You’ll be re-seasoning within a month.

The second issue is smoke point. Crisco’s published smoke point is around 360°F, while refined peanut oil hits 450°F and corn oil 440°F. Your griddle surface can easily exceed 400°F, especially on high settings. At that temperature, Crisco burns rather than polymerizes cleanly, filling your kitchen with acrid smoke and depositing a layer of carbon soot.

For a maintenance coat after cooking, a tiny dab of Crisco rubbed on a warm surface is less risky. But for building or repairing the foundational seasoning, the data says to reach for the liquid oil.

The Right Way to Season Any Griddle

This process works for stainless steel, rolled steel, and cast iron griddle tops. It assumes you’re starting with a bare, clean surface. If you’re re-seasoning, you must strip the old coat first (more on that next).

Before you start: The griddle will get very hot and produce significant smoke. Work in a well-ventilated area, use dry cotton cloths (synthetics can melt), and keep handles and knobs clear.

1. Strip it to bare metal. Clean the griddle plate thoroughly with hot, soapy water and a non-abrasive scrubber to remove any factory preservative oil. For stainless steel, a rinse with a 1:2 vinegar-to-water solution cuts through residues. Dry it completely with heat or a towel. Any moisture will cause the oil to bead and create voids in the seasoning.
2. Apply a microscopically thin coat of oil. Pour a teaspoon or two of your high-smoke point oil (peanut, corn, refined vegetable) onto the cool surface. Wipe it over every square inch with a cotton cloth. Then, take a fresh, dry cloth and buff the surface as if you’re trying to remove all the oil. What remains is the perfect, almost invisible film.
3. Heat to smoking. Turn all burners under the griddle plate to high. Heat until the oil smokes consistently across the entire surface. This can take 10-15 minutes. The smoke is the polymerization reaction happening.
4. Cool completely. Turn the heat off and let the griddle cool back to room temperature. This cooling period is when the polymer cross-links solidify. Rushing this step leaves the coating soft.
5. Repeat. Apply another whisper-thin coat, heat to smoke, and cool. For a robust base layer, do this three to four times minimum. The Waring manual specifies eight cycles for a commercial-grade finish.

The surface will darken with each cycle, turning from golden brown to a deep bronze and finally to a matte black. That black color is the visual signature of a fully polymerized coating.

Fixing a Sticky Crisco Seasoning Job

If your griddle is already gummy from shortening or too much oil, you need to reset. The existing soft polymer won’t harden; it must be removed.

Common mistake: Adding more high-heat oil over a sticky layer. The new oil cannot bond to the unstable base. It just creates a thicker, messier gum that eventually flakes.

Start by heating the griddle slightly to warm the sticky coating. Then, scrub vigorously with a paste of coarse salt and a half-cup of water mixed with a quarter-cup of white vinegar. The acetic acid in vinegar helps break down the fatty polymer. Rinse and dry thoroughly.

For tenacious spots, use a plastic scraper or a brass brush, never steel wool on stainless steel, as it scratches. Once the surface is uniformly bare and dry, begin the proper seasoning process from step one above with a liquid oil.

This fix is labor-intensive. It’s the clearest proof that using the right fat from the start saves hours of remedial work later.

Environmental and Material Edge Cases

Your griddle’s location and construction change the seasoning’s job. A stainless steel griddle near a coastal area, swimming pool, or hot tub faces a specific threat.

The Napoleon manual notes that stainless steel “oxidizes or stains in the presence of chlorides and sulfides, especially in coastal regions, warm and highly humid areas, and around pools and hot tubs.” Chlorides are in salt air and pool chemicals; sulfides are in some water and air pollution.

In these environments, the polymerized seasoning isn’t just for non-stick performance. It acts as a sacrificial barrier against corrosive elements. This means you must be vigilant for early signs of breakdown, a reddish tinge (rust) or pitting under the seasoning, and be prepared to re-season more frequently, perhaps every few months of regular use.

For a standard cast iron griddle, the seasoning is primarily for rust prevention and non-stick performance. The maintenance is simpler: after each use, while the surface is still warm, wipe it with a tiny amount of fresh oil to replenish the polymer layer.

Frequently Asked Questions

Can I use olive oil to season my griddle?

You should not use olive oil for initial seasoning. Its smoke point is too low (around 375°F for extra virgin), causing it to burn and create a brittle, carbonized layer that flakes. It’s acceptable for a quick post-cook wipe on an already well-seasoned surface, but not for building the base layers.

How often do I need to re-season my griddle?

Re-season only when performance declines. If food starts sticking noticeably or you see rust spots, it’s time. A well-maintained griddle, cleaned properly after each use and given a light oil wipe, can go years without a full re-season. High-use or harsh-environment griddles may need it annually.

Why did my seasoning turn patchy and flake?

Patchy flaking is almost always caused by an impurity between the metal and the polymer layer. The most common culprits are: leftover factory oil not fully cleaned off, moisture during the initial oil application, or using an oil with additives or a low smoke point that carbonizes instead of polymerizes.

Is seasoning a griddle the same as seasoning a cast iron skillet?

The chemical process is identical. The practical difference is surface area and heat source. A griddle’s large, flat plane requires more attention to ensure even oil distribution and heating. The step-by-step method, clean, thin oil, heat to smoke, cool, repeat, is the same for both.

Can I use flaxseed oil?

Flaxseed oil has a dedicated following for cast iron due to its hard polymer. However, it has a very low smoke point (around 225°F) and is notoriously prone to flaking if applied too thickly. For griddles that reach much higher temperatures, the stability of high-smoke point oils like peanut or refined vegetable oil is a more reliable choice.

The Bottom Line

Skip the Crisco for the important work. Seasoning a griddle is a chemical bonding process that demands a specific reactant: a liquid oil with a high, stable smoke point. The manufacturer manuals all point to peanut, corn, or refined vegetable oil for a reason, they work predictably.

Your goal is a thin, hard, polymerized coating. That comes from buffing on an almost-invisible film and letting heat do the chemistry. A sticky coat means too much oil or the wrong fat. Strip it and start over with the right materials. The result is a surface that protects your investment and makes cooking effortless.