But is it really much safer on the top rack?
After all, the hot water gets to the top rack only a split second after the bottom rack. How much colder is it really!
Maybe it is the heater, but I had thought that was either underwater, or off when there was no water, like between cycles. Except for the drying period. But I have turned my electric drying off, and I use only the air. Am I keeping things in the top rack to protect them from the electric drying that I don't use? (I have a 27 year old Kenmore-probably-Whirlpool, if that makes a difference.)
If you are inclined to email me for some reason, remove NOPSAM :-)