How Long Does It Take to Grill Corn on the Cob?

Quick Answer

10–15 minutes for husked corn directly on the grill over medium-high heat (400–450°F). Corn grilled in the husk takes 15–20 minutes because the husk insulates the kernels. Turn the ears every 3–5 minutes for even cooking and charring.

Grilling Times by Method

Method	Heat Level	Time	Result
Husked, direct heat	Medium-high (400–450°F)	10–15 minutes	Charred, smoky flavor
In-husk, direct heat	Medium-high (400–450°F)	15–20 minutes	Steamed, tender, sweet
Husked in foil	Medium (350–400°F)	15–20 minutes	Steamed, buttery
Indirect heat (any)	Medium (350°F)	20–25 minutes	Gentle, even cooking

Husked Corn (Direct on the Grate)

Grilling husked corn directly on the grate gives you the classic charred, smoky flavor that most people associate with grilled corn.

1. Peel off all husks and silk
2. Brush ears lightly with oil or melted butter
3. Season with salt and any desired spices
4. Place directly on grill grates over medium-high heat
5. Grill for 10–15 minutes, turning every 3–4 minutes (about 3 turns)
6. Remove when kernels are lightly charred in spots and tender

Charcoal vs Gas Timing

• Charcoal grill: Cook over medium-hot coals (you can hold your hand 5 inches above the grate for 3–4 seconds). Time: 10–12 minutes. Charcoal produces more intense, smoky flavor.
• Gas grill: Preheat to medium-high (400–450°F). Time: 12–15 minutes. Gas gives more consistent heat and easier temperature control.

Charcoal tends to cook slightly faster due to radiant heat from the coals, and it imparts a more pronounced smoky character.

In-Husk Corn

Grilling in the husk steams the corn inside its natural wrapper, producing very tender, sweet kernels with a subtle smoky note.

1. Pull back the husks without removing them and remove the silk
2. Optionally brush with butter and seasonings
3. Pull the husks back up over the corn and twist the tops closed
4. Soak in cold water for 10–15 minutes (optional, prevents burning)
5. Grill over medium-high heat for 15–20 minutes, turning every 5 minutes
6. The outer husks will blacken — this is normal
7. Let cool for 2–3 minutes, then peel back the husks to serve

Alternatively, you can grill corn completely in the husk without pulling it back at all. Place the whole ear, silk and all, directly on the grill. The silk will burn away and the corn steams inside. Same timing: 15–20 minutes.

Direct vs Indirect Heat

Direct Heat (over the flame)

• Faster cooking: 10–20 minutes depending on method
• Creates char marks and caramelization
• Requires frequent turning to prevent burning
• Best for husked corn or quick in-husk grilling

Indirect Heat (away from the flame)

• Slower cooking: 20–25 minutes
• More even, gentle cooking with no risk of burning
• Place corn on the cooler side of a two-zone fire
• Best for large batches where you do not want to monitor each ear closely
• Produces a tender, steamed result similar to boiling

How to Tell When Grilled Corn Is Done

• Color: Kernels should be bright yellow with some charred spots (husked) or uniformly golden (in-husk)
• Tenderness: Pierce a kernel with a fingernail or fork — it should be tender and juicy, not hard or starchy
• Aroma: Cooked corn has a sweet, toasty smell
• Husk color: If grilling in the husk, the outer layers should be well-charred and dry

Foil-Wrapped Method

Wrapping corn in aluminum foil combines the convenience of the husk method with the ability to add butter and seasonings directly.

1. Shuck the corn and remove silk
2. Place each ear on a sheet of foil
3. Add butter, salt, pepper, and herbs
4. Wrap tightly and place on the grill over medium heat
5. Grill for 15–20 minutes, turning every 5 minutes

This method is forgiving and nearly impossible to burn, making it great for beginners or large gatherings.

Tips for Perfect Grilled Corn

• Do not boil first: Pre-boiling makes the corn mushy on the grill. Raw corn directly on the grill gives the best texture.
• Oil, not just butter: Butter can burn at high heat. Brush with oil for grilling, then add butter after removing from heat.
• Medium-high, not blazing hot: Extremely high heat chars the outside before the inside cooks through.
• Let it rest: Give the corn 2–3 minutes off the grill before serving. This allows the heat to distribute evenly.
• Season after grilling: For compound butters, herb rubs, or Mexican street corn (elote) toppings, apply them right after the corn comes off the grill while it is still hot enough to melt butter and cheese.

Serving Variations

• Classic: Butter, salt, and pepper
• Mexican street corn (elote): Mayo, cotija cheese, chili powder, lime juice
• Italian herb: Garlic butter, parmesan, fresh basil
• Spicy: Cayenne, smoked paprika, lime, cilantro
• Miso butter: White miso mixed with melted butter, a touch of honey