Tried something different cleaning the racks on my MES30 last night. I'd smoked up a pastrami as well as some chicken thighs, and the racks were a mess. I had also used my weber gas burner grill, and wanted to clean the grates on that as well. I put the dirty greasy racks from the MES into the weber, and left all burners on high for about 45 minutes (while I fed my face some pastrami!), then used a wire grill cleaning brush to polish them while still hot. Worked like a charm, better than the dishwasher, and you don't leave the dishwasher smelling like old smoke. I've found that using the cleaning cycle in the oven works well also....now, the cost of electricity cleaning the oven vs the cost of propane in the weber...hmmmm, have to give that some thought. Also, the only cleaning I do on the inside of the MES is to wipe the sensors every 3-4 smokes.