Leaving on husks and silks, soak corn for 30 minutes in enough water to cover. Remove corn from water and pull the husks away from the top of the cobs to drain any excess water.
Arrange corn on grill over hot coals and close lid of grill. Cook 25–30 minutes, turning frequently, until corn is tender.
If husks are too hot to handle, let them cool before removing them. Squeeze fresh lemon juice over corn. Sprinkle with salt, pepper, or chili powder.
