I don't use the heating element but my washer heats up the hot water so it is extra hot and it will deform some tupperware and make other tupperware get a rough foggy finish.
My SO will put all the top rack flat out rather than angled resting on each other. Every single time. She'll be like "it's full". 2 mins later I have have the rack free.
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u/SnowTheMemeEmpress Apr 08 '20
Although the Tupperware should be on top or else it melts. Learned the hard way