Grilled corn on the cob is one of those classic summer BBQ foods that gets the best out of the natural sweetness of corn combined with the smoky, burnt flavor that is hard to beat. But maybe one of the most popular questions everywhere is: how long does corn grill? The answer depends on a few important variables like grilling it husked or unhusked, your grill heat, and how charred you like it. Here in this in-depth guide, we will guide you through all the methods of grilling corn, grilling time, temperatures, and how not to undercook or burn your cobs.
How Long to Grill Corn on the Cob
Grilling time for corn on the cob takes approximately 10 to 20 minutes depending on the approach. Whether grilling the corn with husks on, foil-wrapped, or directly on the grates dramatically affects the duration and final flavor.
Grilling Time by Method
| Grilling Method | Time | Temperature | Flavor Profile |
|---|---|---|---|
| With husk on | 15–20 minutes | Medium-high (375–400°F) | Steamed and slightly smoky |
| Husk removed, direct grill | 10–15 minutes | Medium-high | Charred and smoky |
| Foil-wrapped | 15–20 minutes | Medium | Tender and juicy |
| Boiled then grilled (par-grilled) | 5–8 minutes on grill | High | Quick, partially charred |
How to Grill Corn (Step by Step)
Method 1: Grilling Corn With the Husk On
This method protects the kernels from direct heat and allows them to steam in their own juices:
- Preheat grill to 375–400°F (190–205°C).
- Soak the corn (husk and all) for 15–30 minutes in cold water to prevent burning.
- Grill the corn, rotating every 4-5 minutes.
- Grill for about 15–20 minutes until the kernels are done and the husk is charred.
Method 2: Grilling Corn Without the Husk (Direct Grill)
- Peel back or remove the husks, and remove the silk.
- Brush the corn with olive oil or butter to give it an additional taste and prevent sticking.
- Grill for 10–15 minutes, flipping every 2–3 minutes to obtain an even color.
Method 3: Foil Grilling Corn
- Remove husks and silk.
- Wrap each cob in aluminum foil with seasoning and butter.
- Place on medium heat grill and grill for 15–20 minutes, turning occasionally.
Visual Doneness Guide
| Visual Cue | What It Means |
|---|---|
| Kernels are bright yellow and plump | Perfectly cooked |
| Kernels are shriveled or burnt | Overcooked |
| Kernels are pale or tough | Undercooked |
Tips for the Best Grilled Corn
- Soak husked corn: Prevents burning and adds moisture when grilled.
- Compound butter: Combine garlic, herbs, or chili with butter for an enhanced flavor.
- Turn often: Prevents burning and cooks it uniformly.
- Avoid grilling too long: Too much grilling will cause the kernels to dry and become chewy.
Frequently Asked Questions (FAQs)
- Can you grill corn without boiling?
Yes, and it's the best tasting too! Grilling corn directly is when the sugars caramelize to give you a richer, smokier taste. You don't need to boil first unless you want to speed up the grilling time. - Should corn be grilled in foil or not?
Your preference. Foil retains the steam and makes the kernels tender and juicy, but unwrapped corn yields a crisper, blackened surface. If you enjoy smoky flavor and a little crunch, skip the foil. - Should I butter the corn before or after grilling?
You can do both! Preoiling or prebuttering before grilling prevents sticking and adds flavor. Buttering after grilling provides a rich finish, particularly with added seasoning. - How do I know when grilled corn is done?
Grilled corn is done when the kernels are bright yellow, slightly browned or charred, and tender when poked with a fork. The husk will also be blackened if you’re grilling with the husk on. - What toppings go well with grilled corn?
Try classic butter and salt, or get creative with Parmesan cheese, lime juice, chili powder, mayo (Mexican elote style), garlic aioli, or fresh herbs like cilantro and basil.
Final Thoughts
Grilling corn on the cob is a breeze once you understand the different techniques and the best times. No matter whether you grill with or without the husk, grill directly, or wrap in foil, the standard grilling time is 10 to 20 minutes. The key is to turn the corn often and check texture and color. With this guide's advice and FAQ, you'll never question how long to grill corn again.
Then grill the corn and enjoy some smoky, juicy, golden corn on the cob!