The pans under your stove's burners usually get the highest concentration of burned-on grease in your kitchen. Easy-Off is a great remedy for even the worst stains. Apply, wipe, re-apply, wipe, re-apply, wipe, continue as needed until clean. A less intensive concept that works quite well is to coat the pans in a paste of water and cream of tartar. Spread on the grease and let set overnight. Rinse and wash with warm soapy water and watch the grease simply slide away!