Just asked my wife what kind we had. It was in the house when we bought it 20 1/2 years ago. The only time it has gave any trouble is one time, my wife was in the hospital and I, not knowing any better, put regular dishwashing liquid in the darn thing. Never saw the like of soap suds in my life. That said, I know it was actually used to wash dishes that one time and think it might have been used on two other occasions. Oh yes, my wife did respond to my question. Said our dish washer was 5'6" 160 lbs and 78 years (nearly 79) old. Not that the Magic Chef in the kitchen is just taking up space. She uses it for another storage cabinet. If she mentions that something is in the dishwasher, it definitely not dishes.