How to Season a New Stainless Steel Grill Before First Use

You just got your new stainless steel grill delivered, and you're itching to cook. I get it. But here's what I tell every customer before their first cookout: take a few hours to season that grill properly. It sounds like extra work, but the payoff is worth it. A properly seasoned grill cooks better, develops better non-stick properties, and lasts longer. Let me walk you through the process step by step.

Why You Actually Need to Season a New Grill

When grills come off the manufacturing line—whether it's a Fire Magic, Blaze, or Coyote unit—they go through various processes. Metal surfaces can have residual oils from the manufacturing process, anti-corrosion coatings, and residue from storage. You're not just burning those off; you're creating an initial seasoning layer that improves cooking performance.

Plus, any protective coatings need to be burned away before food touches the grill. This is basic food safety and cooking chemistry.

The Burn-Off Process: Start Here

The burn-off is the first critical step. This is where you crank the heat and let the grill do the work for you.

What You'll Need

• Your new grill (obviously)
• Propane or natural gas (depending on your grill type)
• All burners operational (verify they're working before you start)
• A well-ventilated area or your back patio
• Time—plan for 15-30 minutes
• Basic safety: stand back and don't lean over the grill during this process

Step-by-Step Burn-Off

1. Check your fuel supply and burner function. Make sure your propane tank is full (if using propane) and all burners light reliably. Some grills come with safety locks on burners—remove those before starting. Consult your manual here; different brands have different safety features.

2. Open the lid and remove the grates. Yes, take the grates out. You're going to clean them separately, and you want full access to the interior for initial seasoning. Most grates slide or lift straight out.

3. Ignite all burners on high heat. Light every burner. You want maximum heat for the burn-off. If you've got a side burner or rotisserie burner, light those too. This is controlled—you're creating heat, not explosions.

4. Close the lid and let it run for 15 minutes. Keep the temperature as high as your grill will go. You'll likely see smoke as manufacturing residues burn off. This is normal and expected. The smell might be unpleasant—that's the protective coatings and oils burning away. Open a window if you're worried about smoke inside nearby.

5. After 15 minutes, open the lid carefully. The grill will be extremely hot. Use tongs or a grill tool, not your bare hands. The interior should look darker and possibly have some light residue. That's fine.

6. Let it cool completely. Turn off the burners and close the lid. Give it 20-30 minutes to cool. Don't force cooling with water or anything—just let it happen naturally.

What You're Actually Doing Here

The burn-off process removes manufacturing residues and prepares the metal for seasoning. The high heat oxidizes the surface and burns away protective coatings. This creates a clean slate for the seasoning layer you're about to add. It's similar to seasoning a cast iron skillet, but the approach is different because we're dealing with stainless steel and burner systems.

Initial Seasoning: Building Your Non-Stick Layer

Once the grill has cooled, you're ready for the seasoning step. This is where you create a protective, non-stick surface that improves cooking quality.

Materials You'll Need

• High-heat cooking oil (vegetable, canola, or avocado oil all work)
• Paper towels or clean rags
• Tongs (to hold your oiling cloth safely)

The Seasoning Process

1. Light all burners to medium heat. You don't need maximum heat now—just enough to warm the grill and help the oil spread and polymerize. Medium heat is ideal; it's hot enough to season but not so hot you're risking burns or uneven coating.

2. Let the grill come to medium-hot temperature. This takes about 5 minutes. You want the interior hot enough that oil will spread easily, but cool enough to work safely.

3. Take a paper towel, lightly oil it, and wipe down the interior. Use tongs to hold the paper towel—keep your hands away from the heat. You're looking for a light, even coat of oil on all interior surfaces: firebox walls, back, bottom, and anywhere that'll contact food or heat. Don't oversaturate—a light coating is all you need. Excess oil just smokes more without adding benefit.

4. Spread oil on the firebox walls and indirect cooking areas. If you have a two-zone grill with separate burner controls, oil both the direct-heat area and the indirect side. The indirect side doesn't get as much heat normally, but you want it seasoned too.

5. Let it cook for 10-15 minutes at medium heat. Close the lid. You'll see some smoke as the oil polymerizes (bonds to the metal surface). This is exactly what you want. The oil isn't being burned away; it's bonding at the molecular level, creating a seasoning layer.

6. Turn off the burners and let it cool. Once the smoke has mostly subsided (this happens naturally), turn everything off and let the grill cool. This allows the seasoning to set fully.

7. After it cools, wipe out any excess oil with a paper towel. There shouldn't be much. Any pooling oil should be wiped away. You want a thin seasoning layer, not a greasy grill.

The Science Behind This

You're creating a polymerized oil layer on the metal surface. This layer is seasoning—it's durable, non-toxic, and improves cooking. It's the same process used for cast iron, but because stainless steel is non-porous, the layer sits on top rather than being absorbed. Over time, with cooking, this layer gets stronger and more effective.

Grate Preparation: The Second Priority

While you're seasoning the grill box, you also need to prepare the grates. These are what your food actually touches, so getting them right matters.

Cleaning New Grates

1. Remove the grates from the grill. If you haven't already, take them out. Most modern stainless steel grates slide or lift straight out.

2. Inspect for debris or manufacturing residue. Look for any loose material, metal shavings, or protective coating. Use a dry brush or compressed air to remove loose debris. Don't use water yet.

3. Wash with warm soapy water. Use dish soap and a stiff brush to clean the grates thoroughly. You're removing manufacturing oils and residue. Pay attention to crevices where material can hide. If the grates have a glossy finish that looks waxy, that's protective coating—scrub it off.

4. Rinse thoroughly and dry completely. Wet grates will rust (even stainless, though slower). Use paper towels or a clean cloth to dry them completely before cooking.

Seasoning the Grates

1. Once the grill box is seasoned and cooling, place the grates back in position. They should go back the same way they came out—check your manual if you're unsure.

2. Once the grill has cooled completely, do a light oil rub on the grates themselves. Use an oiled paper towel (same approach as the firebox) to coat both sides of the grates with a light layer of oil. This starts the seasoning process on the cooking surface itself.

3. Heat the grill to medium-high for 5 minutes with the grates in place. This helps the oil set on the grate surfaces. You'll see smoke again—that's normal and desired.

4. Let it cool and you're done with the grate seasoning. The grates now have an initial protective layer. This layer will strengthen as you cook and add fats and oils naturally.

Grate-Specific Notes

Most modern grills from brands like Summerset, TrueFlame, and Bromic come with stainless steel or cast iron grates. Stainless grates need the above process. Cast iron grates are more delicate—they might already be pre-seasoned from the factory, but if not, treat them the same way. The difference is that cast iron retains seasoning better over time, while stainless requires more frequent maintenance.

First Cook: What to Expect

After your seasoning process is complete, you're ready to cook. Here's what the first cook should look like:

Heat the grill normally. There might still be some smoke for the first few minutes as any remaining manufacturing residue and the fresh seasoning layer reach operating temperature. This is fine and will diminish after your first few cooks.

Start with simple foods. Your first cook doesn't need to be complex. Burgers, steaks, or vegetables are perfect. Something that won't take hours and will test the basic cooking ability. This gives you a chance to learn how your specific grill heats and cooks.

Use oils when cooking the first few times. Brush oil on your food or the grates before cooking. This adds to the seasoning layer and prevents sticking while your permanent seasoning develops. After a few cooks, the seasoning layer will be strong enough that you'll need less oil.

Don't be alarmed by initial discoloration. The grates might develop some spots or color variations in the first few cooks. That's the seasoning developing unevenly, and it's completely normal. It evens out over time.

Post-Cooking Maintenance for Seasoned Grills

Once you've seasoned your grill, maintaining that seasoning is straightforward:

After each cook: Brush the grates while they're still warm to remove food debris. A grill brush is standard. You're not trying to make them shiny; you're just removing stuck food. Let any grease sit on the grates as part of the seasoning.

Weekly in heavy use: If you're cooking multiple times per week, occasionally wipe the grates with an oiled paper towel between cooks. This maintains and strengthens the seasoning.

Before long storage: If you're closing down the grill for winter or extended periods, do a thorough clean and apply a light oil coat before storing. This prevents rust during dormancy.

Don't overscrub. A grill brush is fine, but steel wool or aggressive scrubbing removes seasoning. Gentle is better for maintenance. Heavy seasoning removal is only needed if you're actually trying to clean down the metal for some reason.

Frequently Asked Questions

Can I start cooking immediately after the burn-off, without doing the oil seasoning step?

Technically yes, you can. But you're missing the benefit of that seasoning layer. The grill will work, but it won't have the non-stick properties and long-term protection that seasoning provides. I don't recommend skipping it—it's an extra 30 minutes that makes a difference over the grill's lifetime.

What oil should I use for seasoning?

Vegetable, canola, or avocado oil all work well. Avoid oils with low smoke points (olive oil) or highly saturated fats (coconut oil, butter)—they create buildup rather than a clean seasoning layer. High-heat cooking oils are specifically formulated for this use.

Can I use grill-specific seasoning products instead of oil?

You can, though basic oil works fine. Some grill manufacturers sell pre-formulated seasoning sprays that work similarly. Follow their directions if you use a brand-specific product. For most people, though, standard cooking oil is simpler and cheaper.

What if my grates are cast iron, not stainless?

Cast iron grates follow the same process but require more careful handling. Don't submerge them in water like stainless—rinse quickly and dry immediately. The seasoning process is identical. Cast iron actually develops better seasoning than stainless because the porous surface holds the oil better.

How many times do I need to season the grill?

Once for initial setup. Then maintain through normal cooking and occasional touch-ups (light oiling before storage). You're not re-seasoning from scratch repeatedly—you're building on the initial layer.

My new grill came with thick protective coating that won't come off easily—what do I do?

Some grills have substantial industrial coatings. If brushing and soap aren't removing it, use a grill brick (a specially designed abrasive brick) to scrub it off. They're inexpensive and specifically designed for this. Aggressive scrubbing with the grill brick followed by normal cleaning will handle stubborn coatings.

Should I season the thermometer bulbs and other internal sensors?

No—avoid getting oil directly on sensors or electronic components. Oil the grill box and grates, but be careful around any electrical connections or sensor bulbs. Read your manual to identify sensor locations, and keep them clear.

Is this seasoning process the same for gas and charcoal grills?

For gas grills, yes—exactly as described. For charcoal grills, the process is different because you're building a coal bed rather than using burners. The burn-off concept is similar (burn off manufacturing residues), but the execution varies. Focus on seasoning the grates and interior surfaces with oil the same way, but use your charcoal setup to generate the heat rather than gas burners.

Why This Matters: The Long View

Taking time to properly season your new grill isn't a waste. A seasoned grill cooks more evenly, handles cleanup better, develops better browning, and resists rust and corrosion far better than an unseasononed one. Brands like Coyote, AOG, and Delta Heat build in the assumption that users will season properly. That's why professional installers always recommend this process.

You're not doing this because you have to—you're doing it because it's the difference between a grill that works and a grill that actually performs the way it's designed to. Once seasoned, you spend less time on maintenance and more time enjoying better grilling.

Whether you're installing a standalone grill or integrating one into a complete outdoor kitchen, this seasoning process is your foundation. Do it right the first time, and you'll thank yourself every time you cook.