Let’s face it—loading the dishwasher isn’t anyone’s favorite task. But when used the right way, it can save you serious time and effort at the kitchen sink. 

Knowing which items are truly dishwasher-safe (and which aren’t) will help you avoid damage to both your dishes and your machine.

Here’s your go-to guide for smarter dishwasher use—and a longer appliance lifespan.

Items to Keep Out of the Dishwasher

It’s tempting to toss everything in and hit “Start,” but some kitchen items need a little extra care. These don’t belong in your dishwasher:

Cast Iron & Wood

  • Cast iron loses its seasoning and can rust.
  • Wooden utensils and boards dry out and crack from high heat and detergents.

Hand wash with mild soap and water instead.

Glassware with Paint or Print

While most glass is dishwasher-safe, printed or painted designs can fade or chip quickly.

Stick to gentle handwashing to preserve those decorative details.

Ceramic & Copper

  • Ceramic glazes can dull over time.
  • Copper cookware can corrode and pit in the dishwasher’s high-moisture environment.

Keep them looking their best with a quick sink wash.

Sieves, Graters & Small-Holed Tools

Tiny holes don’t always get cleaned properly, and sharp edges can scratch your dishwasher racks.

Wash these by hand to avoid rust and wear.

Nonstick Cookware

Dishwasher heat can damage nonstick coatings, especially if you towel dry afterward.

Pro tip: If you must machine wash, air dry only—and toss damaged pans immediately.

Melamine & Acrylic Dishes

These colorful dishes (often with fun prints or characters) can fade or crack under heat.

Stick with handwashing to keep them vibrant.

Surprising Items That Are Dishwasher Safe

Some lesser-known dishwasher-safe items include:

  • Silicone kitchen tools (baking mats, mitts, trivets)
  • Refrigerator shelves and bins
  • Plastic utensil trays and drawer organizers
  • Kitchen sponges and brushes (place in the utensil holder)

Always double-check your owner’s manual or product label for specific dishwasher instructions.

How to Load Your Dishwasher (the Right Way)

Maximize efficiency and get the cleanest results with these expert tips:

  • Skip pre-rinsing—leave some food residue so detergent can grab on
  • Load back to front
  • Knives: Handles down (to protect edges)
  • Forks & spoons: Alternate heads up/down
  • Cups: Always face down
  • Bowls: Place dirtiest side down, on any rack
  • Spray arms: Check they can spin freely
  • Unload: Bottom rack first to avoid drips on clean dishes

Choosing the Best Dishwasher Soap

The right detergent can make all the difference:

  • Powder/liquid: Budget-friendly but easier to overuse
  • Pods/tablets: Convenient and pre-measured
  • Fragrance-free: Best for those with sensitivity
  • Rinse aid: Great for avoiding streaks and spots

Pro tip: Start with proper loading techniques before switching soaps if your dishes aren’t getting clean.

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