7. Items With Labels On Them
You can accidentally clog your dishwasher if you wash items that have adhesive or paper on their surface. Fixing the dishwasher will cost you too much money. In order to avoid the possible damage, wash items with various labels on them by hand. You can also try and remove all labels by soaking them off.
8. Fancy and Luxurious Items
If you own things that are rare, precious and expensive, do not put them in the dishwasher. You never know how badly the machine will damage them. Antique utensils were not made to be washed in the dishwasher. This kind of device is a relatively modern invention and can be safely used only for things that are resistant to harsh conditions.