Eli5: why are some utensils dishwasher safe and others are not?

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Technically isn’t every utensil supposed to be dishwasher safe? Like what difference does those utensils have?

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Anonymous 0 Comments

It depends on the material the utensil is made out of. Some of the metal alloys used in good kitchen knives, for example, will rust very quickly. The jostling around in the dishwasher also causes them to dull faster.

Things with rubberized seals, like what you see on some water bottles and travel mugs, will break down when exposed to the continuous high temperatures of a dishwasher.

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