DIAGNOSIS You can, but it's the fastest way to degrade the non-stick coating. The harsh detergent and high-heat drying cycle in dishwashers will cause it to wear down and discolor prematurely.
FIX Hand wash only. Let the basket cool, then soak in warm, soapy water. Use a soft sponge or nylon brush. The non-stick surface means food residue wipes off easily with minimal effort.
IF THAT DIDN'T WORK For stuck-on grease, make a paste of baking soda and a drop of dish soap. Apply, let sit for 10 minutes, then gently scrub and rinse. It's more effective and gentler than dishwasher detergent.
HEADS UP The "Dishwasher Safe" claim is a marketing point for convenience, not a recommendation for longevity. Hand washing adds maybe 90 seconds to your cleanup and will extend the usable life of the basket by years.