**8 things you should never put in the dishwasher** (and why)

Why knowing what not to put in your dishwasher matters

If you rely on your dishwasher daily, it’s crucial to understand that not all kitchen items are suited for this appliance. Using your dishwasher incorrectly can lead to costly damage—not only to your favorite cookware and utensils but also to the dishwasher itself. Replacing damaged kitchenware or repairing appliances can cost hundreds of dollars, far outweighing the small effort of hand washing certain items.

Recognize the first key decision: Is your item dishwasher safe or not?

Every kitchen item should come with care instructions. These labels are your best guide. Items marked “Hand wash only” are not designed to withstand the high temperatures, harsh detergents, and strong water jets inside a dishwasher. Ignoring these instructions can cause irreversible damage, from warping and dulling to cracking and rusting.

The difference in cleaning methods is significant: dishwasher cycles use water heated above 140°F (60°C) combined with powerful sprays and chemical detergents, conditions far more aggressive than manual washing. This environment can degrade materials and finishes that hand washing preserves.

Safety risks and long-term costs

Beyond damage to items, placing certain objects in the dishwasher can create safety hazards. Sharp knives, for example, can become dull quickly and present a hidden danger when unloading. Adhesive labels that dissolve can clog filters and reduce your dishwasher’s efficiency, leading to costly repairs.

Maintaining your kitchenware’s longevity also has financial implications. For instance, non-stick and cast iron pans require specific care to preserve their surface coatings. Damage from dishwasher use often means premature replacement, which can cost upward of $50 to $200 per pan.

When to check your medicine cabinet

Surprisingly, some medications come with dosing cups or containers that might seem dishwasher safe but can warp or degrade under dishwasher heat. Always check labels and manufacturer recommendations for these items. Proper cleaning helps avoid chemical residues or compromised dosing accuracy.

In summary, the first step to protecting your investment and ensuring efficient dishwashing is to identify which items should never enter the dishwasher. This knowledge prevents damage, extends the lifespan of your kitchen essentials, and avoids unnecessary expenses.

Here are the 8 things you should never put in the dishwasher. Number 3 is the one most people overlook — and it can ruin a pricey pan faster than you think.

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