When should waffle release spray or butter be used on a waffle baker with a non-stick coating?

Using waffle release spray or butter on a waffle baker with a non-stick coating is generally not necessary. Non-stick surfaces are designed to reduce the need for additional fats or sprays, as their primary function is to allow food to cook evenly and be released easily after cooking without extra lubrication.

Applying sprays or butter can potentially interfere with the non-stick properties, leading to residue build-up or degradation over time. This can create a less effective cooking surface and might even lead to the food sticking instead of releasing smoothly. Therefore, the most suitable practice for maintaining the integrity of the waffle baker is to avoid using any additional release agents altogether.