What Items Beyond Knives Should You Avoid Putting in the Dishwasher?

While it's tempting to stick as many items as possible in the dishwasher for convenience, there are certain items that should never see the inside of a dishwasher. From fragile glassware to cast iron cookware, improper handling can severely damage these items. In this guide, we'll explore why you should avoid washing certain items in the dishwasher, and which items are safe to put in for a clean and hygienic experience.

Why You Shouldn't Put Certain Items in the Dishwasher

1. Kitchen Knives
Cooking knives are specifically listed as items that should never be put in the dishwasher. The vigorous washing cycle can dull the blade, and banging against other utensils can damage the edge. Moreover, dishwasher detergents can corrode the metal over time, leading to rust and further damage.

Dishwasher Detergents: A Culprit

Dishwashers use harsh detergents that can etch delicate surfaces, such as those on crystal glasses and Grandma's cherished vases. These detergents contain acids that can erode the glass, rendering your prized possessions unappealing and potentially hazardous to handle.

Wooden Items and Other Fragile Utensils

Wooden cutting boards, wooden spoons, and wooden bowls should also be kept out of the dishwasher. The combination of heat and moisture can cause the wood to absorb water and expand, leading to cracks and splits. Additionally, steam cycles can exacerbate this issue, making wooden items highly susceptible to damage.

Cast Iron Cookware: A Sensitive Dish

Cast iron cookware needs extra care, as its seasoning (a thin layer of polymerized oil) can be stripped away by dishwasher detergents and hot water. Without proper seasoning, your cast iron cookware will lose its non-stick properties and may even oxidize, leading to a dull finish. Consult the manufacturer's guidelines or seek advice from experts like Steven J Owens on effective seasoning methods.

Protecting Your Kitchenware with Steam Cycles

1. Plastic Cutting Boards
Plastic cutting boards, while generally dishwasher safe, can harbor bacteria in microscratches. Running them through a dishwasher's steam cycle can kill lingering germs and sanitize the surface. This is a crucial step in maintaining the hygiene of your kitchen utensils.

2. Sponges and Cleaning Tools
Regularly washing your sponges and cleaning tools can help maintain their hygiene and extend their lifespan. Running them through the dishwasher's steam cycle can thoroughly clean these items, removing bacteria and viruses that can accumulate in microscratches and crevices. However, be sure to check the manufacturer's recommendations before doing so.

Additional Kitchen Utensils to Avoid

Aluminum Pans and Non-Stick Pans

Aluminum pans, while commonly used, can oxidize and dull if put through the dishwasher. Look for older or inherited pans that may already be dulled to avoid additional damage. Non-stick pans are another item to be cautious with. While the manufacturers recommend gentle washing, it's best to double-check their recommendations to ensure safe use.

Pressure Cookers and Other Modern Appliances

Technological advancements have made some kitchen appliances more user-friendly. For instance, Instant Pots come with great care instructions. Their website explicitly states that all parts of the Instant Pot, except the cooker base, are dishwasher safe. Follow these guidelines to keep your modern appliances clean and functioning without damage.

Conclusion

Maintaining the integrity and longevity of your kitchenware is essential for a functional and hygienic kitchen. While dishwashers offer convenience, certain items should be excluded from their functions to prevent damage. By understanding the risks and taking the necessary precautions, you can ensure your prized possessions remain in excellent condition and continue to serve you well for years to come.