How do I clean a cooling rack with baked on food?

Soak in hot soapy water for 30 minutes, then scrub with a nylon brush (not steel wool on non stick). For stubborn spots, make a paste of baking soda and water, apply it, wait 15 minutes, and scrub. A toothbrush reaches between tight wires. Most stainless steel racks are dishwasher safe place them vertically against the back wall for the best cleaning results.