What to avoid in the dishwasher at all costs

What to avoid in the dishwasher at all costs
Aluminum pots and pans:

They can warp or lose their coating.

Wooden utensils:

Water and heat can cause them to crack and warp.

Decorated porcelain:

Some designs or paints can discolor or become damaged.

Crystal and delicate glass:

They can scratch or break easily.

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