Why should a waffle baker with non-stick coating be kept open when not in use?

Keeping a waffle baker with a non-stick coating open when not in use is essential to prevent damage to the non-stick coating. When the waffle baker is closed, the surfaces can stick together, potentially compromising the integrity of the non-stick layer over time. This can result in peeling or scratching, which diminishes its effectiveness and could lead to food adhering to the surface during cooking. Ensuring that the device remains open allows for proper air circulation around the cooking surfaces, which not only helps maintain the quality of the non-stick coating but also helps preserve the appliance's overall functionality and longevity.