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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21 Answers

Anonymous 0 Comments

Dishwashers use hot water and chemicals to clean dishes and utensils. Those two things can hurt certain materials, and not every kitchen utensil is made the same way with the same materials. So really, it’s all about what materials the utensil is made with.

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.

Anonymous 0 Comments

Dishwashers use hot water and chemicals to clean dishes and utensils. Those two things can hurt certain materials, and not every kitchen utensil is made the same way with the same materials. So really, it’s all about what materials the utensil is made with.

Anonymous 0 Comments

Dishwashers use hot water and chemicals to clean dishes and utensils. Those two things can hurt certain materials, and not every kitchen utensil is made the same way with the same materials. So really, it’s all about what materials the utensil is made with.

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.

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.

Anonymous 0 Comments

Some utensils are made of multiple components. Such as steel handles and dwarven tines. The chemicals in a dish washers creates electrical differences that will etch you silverware.

Anonymous 0 Comments

Some utensils are made of multiple components. Such as steel handles and dwarven tines. The chemicals in a dish washers creates electrical differences that will etch you silverware.

Anonymous 0 Comments

Some utensils are made of multiple components. Such as steel handles and dwarven tines. The chemicals in a dish washers creates electrical differences that will etch you silverware.

Anonymous 0 Comments

It’s mostly the heat. A dishwasher can wash your dishes at temperatures reaching 70° which your hands could never sustain. As it stands, some materials and decorations – also. But if you instead choose to use a more gentle program that does the job at 40-50 degrees, many utensils will survive inside just fine. Attempt at your own risk. I do that only with things I don’t care about that much.