Surprising Things You Can Clean in Your Dishwasher
Harness hot water jets to refresh sponges, toys, and tools, no extra scrubbing required.
Your dishwasher is a powerful cleaning tool—capable of far more than simply washing plates and cups. With the right guidance, you can use it to freshen and sanitize a wide range of household items, saving time and maximizing cleanliness. Below, discover what you can (and cannot) clean in your dishwasher, along with expert care tips to keep your appliance working its best.
What Household Items Can You Clean in a Dishwasher?
Dishwashers use hot water, detergent, and high-pressure jets to wash, rinse, and sanitize items made from dishwasher-safe materials. Here’s a detailed list of common—sometimes unexpected—items you can safely wash in your dishwasher:
- Kitchen Sponges & Brushes
Place these on the top rack. Cleaning them regularly kills bacteria and neutralizes odors. - Stovetop Burner Grates & Knobs
Most metal or ceramic grates (not cast iron) and removable knobs are dishwasher-safe. Ensure they’re fully dry before reassembling. - Refrigerator Shelves & Drawers
Plastic or glass refrigerator accessories (check for dishwasher safety symbols) fit best when the top rack is adjusted or removed. - Microwave Turntables
Glass turntables and the plastic support ring can go on the bottom rack for a thorough cleaning. - Range Hood Filters
Metal mesh filters benefit from regular washes; place them vertically in the bottom rack. - Fan Grilles & Vent Covers
Plastic and metal versions fit in the top rack and come out dust-free and sanitized. - Light Fixture Covers (Glass Only)
Remove bulbs first. Wash glass globes or shades—secured among the dish tines—to eliminate dust and bugs. - Silicone Oven Mitts & Trivets
These heat-resistant kitchen tools are typically dishwasher-safe. Wash on the top rack. - Pet Food & Water Bowls
Ceramic, glass, and some heavy-duty plastics can be regularly run through the dishwasher to prevent bacteria buildup. (Avoid bowls with metallic paint or stickers.) - Kiddie Toys
Hard plastic baby toys, teething rings (without batteries or electronic parts), and bath toys can be cleaned using top rack placement inside a mesh bag. - Toothbrush Holders & Soap Dishes
Prevent soap scum and bacteria by washing these on the top rack every week. - Flip-Flops & Shower Shoes (Rubber Only)
Place on the top rack. Avoid shoes with glued parts or decorations. - Hats & Baseball Caps (Synthetic/Plastic Only)
Secure in a cap cage or on the top rack. Use no-heat dry settings to prevent warping. - Garden Tools (Plastic and Metal Only)
Hand trowels, pruners, and stakes can be cleaned (but not if they’ve touched chemicals like pesticides or herbicides). - Vase & Flower Pot (Ceramic/Glass/Plastic)
Freshen up flower vases or small plastic pots (check for dishwasher safe mark). - Drawer Organizers (Plastic/Metal Only)
Cutlery trays, utensil caddies, and small storage bins are dishwasher-safe when placed upright. - Vacuum Attachments (Plastic Only)
Remove dust and debris before washing. Allow to dry fully before use. - Desk Accessories
Pencil cups, letter trays, and other plastic office gear can be refreshed on the top rack. - Car Cup Holders & Main Console Trays (Plastic Only)
Check for electronic parts first, then wash with regular loading tips. - Tools (Metal Only, No Wood/Rubber Handles)
Wrenches and pliers can go through a short cycle once to remove grease—dry and oil promptly after washing.
Important: Use Common Sense
Always consult the manufacturer’s instructions before putting anything unusual in the dishwasher. If you’re not sure, err on the side of caution and wash by hand.
Items You Should Never Put in Your Dishwasher
Not everything is dishwasher-safe. Here are items that you should always wash by hand or avoid washing in the dishwasher to prevent damage or safety hazards:
- Wooden utensils, bowls, and cutting boards – The heat and moisture warp and crack wood.
- Sharp kitchen knives – The dishwasher can dull blades and loosen handles.
- Insulated mugs and containers – Water gets trapped between the inner and outer layers, destroying insulation.
- Cast Iron and Nonstick Cookware – The dishwasher wears away seasoning and nonstick coatings.
- Crystal and delicate glassware – These are prone to cracking and chipping.
- Silver, gold, or gold-plated items – The dishwasher tarnishes and damages precious metals quickly.
- Disposable plastics and aluminum – Lightweight plastics and thin metals melt or deform under heat.
- Items with electronic components – Never expose electronics to water or heat cycles.
- Anything labeled “hand wash only” – Always follow care instructions.
How to Load Your Dishwasher for the Best Results
Loading your dishwasher correctly is essential not just for cleaning effectiveness but also for item safety. Use the following protocols to get optimal results:
- Top Rack: For fragile glassware, plastic containers, utensils, and smaller dishwasher-safe items like toys or sponges.
- Bottom Rack: Place heavier and larger items, such as pots, pans, metal grates, and plates. Place bakeware and pans facing down for maximum spray access.
- Silverware Basket: Mix up utensils to avoid nesting; point knives down for safety, but if washing delicate utensils, handle upward to reduce handle dents.
- Separate Dissimilar Metals: Avoid direct contact between stainless steel and silver to prevent corrosion.
- Do not overcrowd: Give each item space to allow water and detergent to reach every surface.
- Secure Lightweight Items: Weigh down anything that may flip during the wash cycle or tuck lightweight lids within tines.
Essential Dishwasher Maintenance Tips
To keep your dishwasher effective for years to come, regular cleaning and maintenance are essential. Here’s how to care for your machine:
- Wipe away excess food particles before loading to keep the filter cleaner for longer.
- Use only the recommended detergent amount—overusing detergent can cause buildup and streaks.
- Clean the filter every 1-2 weeks depending on usage. Remove the bottom rack, extract the filter, and rinse/delight as needed.
- Occasionally clean spray arms to clear out clogs and maintain water flow effectiveness.
- Wipe the door seal and edges weekly to remove grime and debris.
- Run a cycle with dishwasher cleaner monthly. Tablet or liquid cleaners clear hidden buildup, while white vinegar in a bowl on the top rack works as an alternative (empty dishwasher only).
- Check manufacturer’s manual for maintenance specifics and troubleshooting tips.
Dishwasher Dos and Don’ts: Quick Reference Table
| Item Type | Safe for Dishwasher? | Special Instructions |
|---|---|---|
| Plastic Toys | Yes | Top rack, mesh bag recommended |
| Wood Cutting Boards | No | Hand wash to prevent cracking |
| Metal Utensils | Yes* | Keep stainless steel and silver separate |
| Cast Iron | No | Dishwasher removes seasoning |
| Crystal Glassware | No | Prone to etching or breakage |
| Range Hood Filters | Yes | Metal only; avoid paper or fabric filters |
| Pet Bowls (Ceramic/Glass) | Yes | Wash regularly to kill bacteria |
| Electronic Toys/Items | No | Never submerge electronics |
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Additional Tips for Efficient and Effective Dishwasher Use
- Scrape, Don’t Pre-Rinse: Scrape food from plates, but avoid heavy rinsing to save water and boost detergent effectiveness.
- Use Rinse Agents: These help dry dishes and prevent water spots. A small amount of vinegar can substitute for commercial agents.
- Choose Cycle Settings Wisely: Use the shortest effective cycle, and avoid heavy-duty settings for delicate items.
- Don’t Overload: Overcrowded racks prevent water and detergent from reaching every surface.
- Unloading Tip: Empty the bottom rack first to prevent leftover water on the upper rack from dripping onto items below.
Frequently Asked Questions
How often should I clean my dishwasher filter?
For most households, cleaning the filter every 1-2 weeks is sufficient, but check it sooner if you notice odors or residue.
Is it safe to run plastic items in the dishwasher?
Yes, as long as the item is marked “dishwasher safe.” Place plastic on the top rack to protect it from the heating element, and avoid cheap disposable plastics that can warp or melt.
Can I use my dishwasher for items other than kitchenware?
Many household non-electronic items such as vent covers, tools (without wood/rubber handles), and some toys can be cleaned in the dishwasher. Always verify the material is dishwasher-safe to prevent damage.
Why aren’t my dishes coming out clean?
Check for overloading, clogged filters, incorrect detergent or cycle settings, and ensure that your spray arms and racks are clear. Regular cleaning helps prevent performance issues.
Should I rinse dishes before putting them in the dishwasher?
Scraping off large food pieces is recommended, but heavy pre-rinsing is not necessary and may decrease detergent performance.
Final Reminder: Safety and Common Sense First
Your dishwasher can tackle more than dishes—but always prioritize safety. When in doubt, hand-wash valuables or delicate items and consult product instructions for guidance. Regular maintenance and mindful loading habits will help your dishes and household items come out sparkling every time.
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