This is our second Adventium. First one was good for 15 years but we used it basically as a sophisticated microwave. This new one we use for its intended purpose. I like it. Cooked the best salmon with dill butter according to the Speedcook guideline setting and it tasted better than restaurant salmon; moist and delicious. The only issue is one of cleaning. I need a recommendation as to a nonabrasive stainless steel cleaner formulated to remove the yellowish heat tarnish as suggested in the cleaning section of the manual.