3 Items You Must Avoid Placing in Your Dishwasher

You’ve got a dishwasher and you’re tempted to throw everything in it. Don’t!

There are three items you should never put in your dishwasher: wooden kitchen tools, cast iron, and sharp knives.

You might think you’re saving time, but actually, you’re ruining your kitchenware.

So, let’s dive in and understand why these items are a no-go for your dishwasher.

Wooden Kitchen Tools Damage

You’d be surprised to learn how your wooden kitchen tools can suffer significant damage if you place them in your dishwasher.


Let’s start with your wooden spoons. Their exposure to high water temperatures and harsh detergents can lead to discoloration, robbing them of their natural, warm hues. Over time, you’ll notice your spoons sporting an unattractive, faded look.

Now, moving onto your bamboo cutting boards, these aren’t dishwasher-safe either. The intense heat and moisture can cause warping, rendering them unstable and difficult to use. To maintain their shape and longevity, they’re better off with hand washing.

Cast Iron and Dishwashers

Continuing on, your cast iron pans are another item you shouldn’t toss into the dishwasher. The intense heat and water can cause rust formation risks that are impossible to ignore. This kind of damage is irreversible and can ruin your valuable pans.

Instead, cast iron maintenance requires a bit more hands-on care. After cooking, clean your pan with a stiff brush and warm, soapy water. Then, dry it thoroughly to prevent rusting. Applying a light layer of vegetable oil after each cleaning will help keep it in top condition.

Avoiding the dishwasher will extend the life of your cast iron pans, preserve their nonstick surface, and keep your meals tasting great. Remember, proper care will keep your cast iron cooking for generations.

Avoid Dishwashing Sharp Knives

Next on the list, your sharp knives should never find their way into the dishwasher. You might think it’s a convenient shortcut, but it’s a bad idea for a couple of reasons.

Firstly, the blade dulling effects of dishwashers are significant. The harsh environment and powerful jets can quickly turn your razor-sharp cutlery into dull butter knives.

Secondly, there are safety hazards involved. Loose knives can become projectiles during the wash cycle, potentially damaging your appliance or causing injury when you unload the dishwasher.

Frequently Asked Questions

Can I Put Plastic Items in My Dishwasher?

You can put plastic items in your dishwasher, but be aware of plastic melting risks. Always check for dishwasher safe labels to ensure they won’t warp or melt during the cleaning cycle.

Is It Safe to Put Silverware in the Dishwasher?

You’re wondering about silverware in the dishwasher. Here’s the deal: while it’s convenient, it’s not the best for your silverware. Silverware maintenance tips often advise against it due to the dishwasher’s harsh impact.

How Does Dishwashing Affect Ceramic Dishes?

Ceramic dishes can suffer in the dishwasher. The high heat and harsh detergents can cause ceramic discoloration and glaze deterioration. You’ll notice your ceramics losing their shine and colors fading with repeated dishwasher use.

Can I Put My Glassware in the Dishwasher?

Yes, you can put your glassware in the dishwasher. However, beware of dishwasher safe decals which might peel off, and potential glassware discoloration risks. It’s best to check manufacturer’s instructions first.

Is It Safe to Wash My Electric Kitchen Appliances in the Dishwasher?

No, it’s not safe to wash your electric kitchen appliances in the dishwasher. Doing so risks appliance water damage. Always follow dishwasher safety tips to protect your appliances and ensure they last longer.


In conclusion, you’ve got to protect your kitchen essentials. Don’t toss your wooden utensils or cast iron pans in the dishwasher, they’ll get damaged. And those sharp knives? They won’t stay sharp for long if you clean them this way.

It might seem convenient, but you’re better off washing these items by hand. Remember, taking care of your tools now will save you money and hassle in the long run.

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