Cleaning your glass or metallic pan after baking muffins is fantastically easy. For glass pan, soak it in heat soapy water for a few minutes earlier than scrubbing it gently with a non-abrasive sponge or brush. For metallic pan, you can use slight cleaning soap and heat water to smooth it. Avoid the use of abrasive cleaners or metal wool, as it can scratch the pan's floor and harm its non-stick properties.