I always do them in the husk without soaking whether it's with the pellet grill or charcoal. They steam themselves basically. Charcoal takes less time depending on how hot the fire is. I have put them directly in the coals before and turn them frequently if I'm in a hurry. As long as the husks are green, the corn won't burn. They freeze well with the husks on, too. I never put them in a bag or anything. Straight in the freezer and they're fine.