8 Things You Absolutely Should Not Put in a Dishwasher (And Why)

Yes.

Glassware can sometimes crack or shatter because of:

Existing tiny chips or cracks
Rapid temperature changes
Items bumping into each other during the wash cycle
Poor-quality or damaged glass
To reduce the risk:

Avoid overcrowding.
Leave space between glasses.
Place delicate glassware securely.
Inspect items for chips before washing.
Tips for Loading Your Dishwasher Safely
Place heavier items on the bottom rack.
Position cups and glasses upside down.
Keep sharp knives out of the dishwasher when possible.
Don’t block the spray arms.
Use only dishwasher-specific detergent.
Follow your appliance manufacturer’s recommendations.
When to Replace Damaged Kitchenware
It’s time to replace items if you notice:

Cracks in glassware
Chipped ceramic dishes
Peeling nonstick coatings
Rust on cookware
Loose knife handles
Damaged kitchen tools can become safety hazards and may not perform as intended.

Final Thoughts
A dishwasher can save time and effort, but it’s not suitable for every kitchen item. Delicate glassware, cast iron, sharp knives, wooden utensils, nonstick cookware, insulated mugs, copper cookware, and hand-painted dishes are generally better washed by hand. Taking a few extra minutes to clean these items properly can help protect your kitchen tools, prevent accidents, and keep them looking their best for years to come.