Blog

22 Things You Should Never Put In The Dishwasher

A dishwasher can work some serious wonders in the kitchen and be a real time-saver. It's a magical machine that replaces a precarious pile of dirty dishes with squeaky clean plates. It works overtime every holiday, tailgate, and bake sale season yet still delivers. You love the ease and convenience of using your dishwasher until that moment when you find your favorite coffee mug or keepsake plate broken.

It's a devastating mistake, but it happens to every avid dishwasher user. There are ways to avoid these issues, but they might require some elbow grease and a return to hand-washing certain items. Here's a list of things you should never put in the dishwasher. plastic bottle screw top

A sharp chef's knife can make or break your dinner prep, and putting it in the dishwasher dulls the blade over time. Instead of throwing your best tools into the machine, wash chef's knives by hand to keep them in tip-top shape.

Like your best chef's knife, you wouldn't want the dishwasher to dull the blades in a food grater. This kitchen tool is best cleaned by hand.

Copper is a classic yet stylish pick for your cookware, and copper mugs are perfect for serving Moscow mules year-round. After a big holiday party, throwing a copper mug into the dishwasher is tempting, but this drinkware will not sustain many cycles through the dishwasher. Make sure to hand-wash any copper items or other precious metals to keep their shine and luster intact and avoid discoloration or tarnishing.

Whether you're collecting vintage milk glass bowls from your great aunt or retro-inspired glassware from Anthropologie, be sure to hand-wash them unless you're ready to risk discoloration. The semi-opaque milk glass will look yellow after a cycle through the dishwasher.

Over time, items with text can fade after many cycles in the dishwasher. A measuring cup isn't helpful when the lines have disappeared.

Melamine dishes and serve ware have withstood the test of time and proven popular even with the invention of new materials. Vintage melamine pieces often have patterns or designs that can dull in a dishwasher.

Unlike its silver counterparts, the sheen on gold flatware fades over time if they are cleaned in the dishwasher. This fading also goes for plates with a gold-metallic design, so to be safe, always hand-wash these items.

Your favorite hand-painted piece won't look the same once it starts to fade. To protect decorative or delicate plates, mugs, or any other painted items, hand-wash and gently scrub with a smooth sponge so you don't peel off any paint.

If a mug has any decorative paper elements, they will likely fade in the dishwasher. Similar to text and other decorative embellishments, paper is too delicate to withstand the heat and hot air in a dishwasher.

Your favorite and most trusted travel mug might not be airtight after a couple of visits to the dishwasher. The same goes for plastic or metal insulated cups. The insulated airspace that maintains the temperature of your hot or cold liquids gets compromised and loses efficiency. If you're desperate because you finally found a lost insulated tumbler under your car seat after a long, hot summer month, opt for the top rack and skip the high heat of the drying cycle.

The dishwasher's hot water and dry heat can warp or crack wooden kitchen utensils and cutting boards, rendering them less-than useful. The heat dries natural wood cutting boards, making them look sad and faded.

This one is a big no-no. While your pressure cooker pot might be acceptable, the lid poses a safety issue. The dishwasher can warp or damage the rubber seal on the cover as well as damage the valves and vents that the lid uses when cooking. These things can lead to many problems, including pressure cooker explosions.

Some nonstick cookware is reportedly "dishwasher safe." We don't distrust that fact, but we also know that the dishwasher can degrade the nonstick coating on your nonstick skillets and sheet pans, rendering them less effective. Read your labels, and proceed with caution.

The dishwater's scalding water can stain or dull aluminum cookware. Stainless steel has a better chance in the machine, but you should always check the labels. In our experience, better safe than sorry!

Your cast-iron skillet is such a game-changer for gooey cobblers and classic cornbread that it'd be a real shame to lose it. The seasoning on a cast-iron skillet makes it unique, and the dishwasher can degrade the coating and eventually lead to rust.

This rule should be a given, but we'd never get past the guilt if we didn't at least give fair warning. Before you line up your heirloom dishes in the dishwasher, think again. It can cause them to chip, fade, or lose their finish. Hand-washing is essential if the patterns have any metallic details.

Crystal stemware and dishes can crack, chip, or break due to the high heat of a dishwasher. These pieces can also be stripped of their sheen or become etched or cloudy after repeated washings. Check the manufacturer’s directions before loading (because some types cannot be washed even on a dishwasher’s delicate cycle), or play it safe and hand-wash.

As previously mentioned with metallic gold items, a pewter serving dish will not withstand many cycles through the dishwasher. As many pewter items are vintage or antique, this is especially true because of the delicate construction.

Unless it's specifically designated as "dishwasher safe," placing a plastic container in a dishwasher runs the risk of melting it due to the extreme water and air temperatures. Even if it's technically "dishwasher safe," continuously placing a plastic container in the dishwasher may cause it to lose its sturdiness, which can be dangerous if pieces of the plastic end up in your food.

This is a highly debated topic regarding dishwashers, but placing dishes with large pieces of food on them will not do your machine any good in the long run. Leaving food on a plate can clog your dishwasher, making it susceptible to breaking in the future.

If a plate or mug already has a chip in it, that dish is more likely to continue cracking when put through the dishwasher cycle's hot water and dry heat. Not only is this not a good practice for your dishwasher, but it can also potentially be harmful as these pieces can fall apart during their subsequent use.

To save glass jars and containers for reusable storage, the first step usually involves the sink or dishwasher. However, it's crucial to remove the paper label beforehand. If a piece dislodges during the cycle, it can clog the dishwasher drain and food disposal system and lead to damage with a hefty price tag.

aerosol can puncturing device So always remember, your dishwasher works some magic but not miracles. Keep this list handy, and don't ruin your favorite kitchen tools.