All of our Char-Broil grills will cook better when you preheat the grill beforehand — for both gas and charcoal. Plus, preheating helps remove some of the residue from prior use. How long should you preheat it? A good rule of thumb is about 15 minutes for maximum temperature or searing. To cook at a lower temperature, like for low and slow cooking barbecue, preheat for 10 minutes or less. Both of those times can vary a little depending on how cold or windy the weather is.
