An infrared gas grill uses a gas-heating element to heat a solid surface that is located inside the grill. The heat from the surface radiates infrared waves directly into the food on the grate of the grill. The gas-heating element also heats the air inside the grill to create a small amount of convection to help cook the food.
Although some convection is used to cook the food inside of an infrared gas grill, less air is circulated inside the grill. This allows the food to retain more moisture as it cooks.
The high temperature of the grill also cooks foods faster than traditional gas grills, as it doesn't rely solely on the hot air that circulates inside the grill to cook the food. This cuts the cooking time of meats by half.
Infrared grills reach their top cooking temperatures in approximately 3 to 5 minutes, unlike charcoal grills, which take approximately 20 minutes to reach adequate cooking temperatures. Similar gas grills that don't use infrared heat take approximately 10 minutes to preheat.
Despite the high temperatures that infrared grills produce, all meats must still be cooked to the correct internal temperature to ensure that they are safe to eat.