Corn on the cob is a classic summer treat that goes great with barbecues. When cooked properly, the corn turns out sweet, tender, and full of flavor. However, cooking corn on the grill can be tricky. Undercook it and the corn will be hard and tough. Overcook it and you’ll end up with dried out, chewy corn. Follow this guide to learn exactly how long to cook corn on the BBQ to get perfect corn every time.
Introduction to Cooking Corn on the Grill
Corn is one of the most popular vegetables to grill because the smoky, charred flavor pairs so well with the natural sweetness of fresh corn. The key is to cook it just long enough to add that delicious char while keeping the corn tender.
There are two main methods for grilling corn:
- Direct grilling – This involves cooking the corn directly over the heat source. The kernels char and caramelize as they cook, adding flavor.
- Indirect grilling – With this method, you place the corn off to the side or above the direct heat. This allows the corn to steam and cook through gently without burning the outside.
So how long should you grill corn to get the best results? There are a few factors to consider:
How Long Does it Take to Cook Corn on the BBQ?
The exact grilling time can vary depending on a few factors:
1. Direct vs Indirect Heat
- Direct heat – 8-15 minutes
- Indirect heat – 15-30 minutes
With direct high heat over the coals or flame, corn cooks faster. Indirect heat off to the side cooks more slowly and gently.
2. Number of Cobs
- 1-2 cobs – 8-12 minutes
- 4-6 cobs – 12-18 minutes
- 10+ cobs – 15-30 minutes
The more corn you are cooking, the longer it will take. Grill in batches if needed.
3. Fresh vs Frozen
- Fresh corn – 8-15 minutes
- Frozen corn – 15-25 minutes
Frozen corn takes longer to thaw and cook through.
4. Rows per Cob
- Smaller cobs with 12-14 rows – 8-12 minutes
- Larger cobs with 16-18 rows – 12-18 minutes
Larger cobs will need more time over the heat. Check frequently for doneness.
BBQ Cooking Steps for Perfect Corn
Follow these simple steps for grilling sweet, juicy corn on the cob every time:
1. Soak the Corn
Before grilling, soak the corn in water for 10-30 minutes. This allows the husk and kernels to absorb water which steams the corn from the inside out as it cooks.
2. Pull Back the Husk
Keep the husk on but peel it back to expose the corn silk. Remove all the silk strands – they can burn and impart a bitter taste.
3. Coat with Oil or Butter
Rub a thin coating of oil or melted butter over the exposed kernels. This helps retain moisture and adds flavor.
4. Re-cover with the Husk
Pull the husk back over the corn to protect it as it grills. You can tie the top with a piece of husk or use corn holders.
5. Grill Over Direct Heat
Place the corn directly over high heat. Grill for 8-15 minutes, turning every 2-3 minutes. This adds nice char while cooking the kernels.
6. Finish Over Indirect Heat
Move the corn to indirect heat and continue grilling for 10-15 minutes until tender. The husk and soaked kernels steam the corn through.
7. Check for Doneness
The corn is ready when the husk is lightly charred and the kernels are tender when pierced with a fork.
8. Serve Immediately
Remove the charred husk and silks before serving. Corn is best eaten right off the grill!
Tips for Grilling the Best Corn on the Cob
- Choose fresh, high-quality sweet corn in the husk. Remove any dried or damaged husks.
- Grill when corn is in peak season for maximum sweetness.
- Always grill over a hot fire. Lower heat will steam rather than char the corn.
- Rotate the corn frequently so all sides get evenly charred.
- Rub with flavored butters or spices after grilling for extra flavor.
- Let corn rest for 5 minutes after grilling – this finishes the cooking process.
- Serve corn immediately or it can lose moisture quickly. Don’t grill corn too far ahead of eating.
Frequently Asked Questions
How do I know when the corn is done on the BBQ?
Check for lightly charred husks and gently pierce a kernel with a fork or knife tip. It should feel tender, release juice easily, and not seem crunchy or raw.
Should I remove the corn silk before grilling?
Yes, always remove the silk first. The silk can burn, stick to the corn, and create a bitter, unpleasant taste.
Can I grill corn without the husk?
You can, but the husk helps retain moisture and adds flavor. If grilling husk-free, brush the corn with oil first and grill over indirect heat, turning frequently.
Does soaking the corn make a difference?
Definitely! Soaking allows the kernels and husks to absorb water, which creates steam that cooks the corn from the inside out.
Can I add herbs, spices, or flavorings to the corn?
Absolutely! Try flavored butters, lime juice, chili powder, grated cheese, or any other flavors you enjoy. Brush over the grilled corn just before serving.
Conclusion
Grilling corn on the BBQ results in an incredibly delicious, smoky summer treat. For the best results, aim for 8-15 minutes over direct heat and 10-15 minutes over indirect heat. Soak the corn first, watch closely, and test doneness along the way. Adjust cooking times based on the number of cobs and whether the corn is fresh or frozen. Serve the grilled corn immediately with extra seasonings and butter to enjoy this iconically summery barbecue side dish at its finest.