What design feature is common with electric griddles to help retain heat?

The solid cooking surface of electric griddles is a critical design feature that helps retain heat effectively. Unlike surfaces that may have removable components or openings, a solid cooking surface allows for better thermal conductivity and heat retention. This design minimizes the heat loss that might occur with joinings or removable parts and provides a uniform cooking temperature across the entire surface.

This consistent heat retention contributes to faster cooking times and more evenly cooked food, which is essential in food preparation. In contrast, options like removable plates may facilitate cleaning but can disrupt thermal efficiency, while a glass lid, while useful for trapping moisture, does not enhance the surface's heat retention. Adjustable legs are primarily for stability and leveling rather than for maintaining heat.