What is the primary purpose of burner "tents" inside a gas grill?

The primary purpose of burner "tents" inside a gas grill is to protect the burners from flare-ups and to facilitate the transformation of drippings into vapor. When the fats and juices from the food drip down onto the burner area, they can ignite and cause flare-ups, potentially burning the food and creating an undesired taste. The tents help to prevent this by diffusing the heat and managing where the drippings land, allowing them to vaporize instead.

This vaporization process enhances the flavor of the food being grilled. As the drippings turn into vapor, they can be reabsorbed by the food, contributing to a richer, more complex taste. Additionally, these tents help create a more even heat distribution, minimizing hotspots and ensuring a consistent cooking temperature across the grilling surface.

The function of enhancing flavor through vaporization, while simultaneously preventing unintended flare-ups, makes burner tents an essential feature of an effective gas grill.