Dishwashers combine hot water, powerful detergents, high-pressure spray, and heat during drying. That’s excellent for many everyday plates, glasses, and utensils, but it can damage certain materials surprisingly quickly.<\/p>\n\n\n\n
Some items may lose their finish. Others can warp, crack, rust, become dull, or deteriorate after repeated dishwasher cycles.<\/p>\n\n\n\n
And in some cases, putting the wrong object inside can create problems for the dishwasher itself.<\/p>\n\n\n\n
Before loading your next cycle, here are 8 things that are generally better washed by hand<\/strong>.<\/p>\n\n\n\n Wooden cutting boards, spoons, salad servers, and other wooden kitchen tools are usually better kept out of the dishwasher unless the manufacturer specifically states otherwise.<\/p>\n\n\n\n Why?<\/p>\n\n\n\n Wood absorbs moisture.<\/p>\n\n\n\n Inside a dishwasher, wooden items are repeatedly exposed to hot water and then heat during the drying process. Over time, that combination can cause wood to swell, dry unevenly, warp, split, or crack.<\/p>\n\n\n\n The dishwasher may also gradually strip away oils and finishes that help protect wooden kitchenware.<\/p>\n\n\n Wash wooden utensils and cutting boards by hand using warm water and dish soap.<\/p>\n\n\n\n Don’t leave them soaking unnecessarily.<\/p>\n\n\n\n After washing, rinse them and allow them to dry thoroughly.<\/p>\n\n\n\n Some unfinished wooden boards also benefit from periodic treatment with a food-safe mineral oil according to the manufacturer’s care instructions.<\/p>\n\n\n\n Your heavy cast-iron skillet may seem almost indestructible, but the dishwasher is not its friend.<\/p>\n\n\n\n Traditional cast-iron cookware develops a protective layer of seasoning through repeated cooking and oiling.<\/p>\n\n\n\n Dishwasher detergent and prolonged exposure to water can damage that seasoned surface and encourage rust.<\/p>\n\n\n\n You may open the dishwasher expecting a clean skillet only to discover that the finish has deteriorated.<\/p>\n\n\n\n Follow the care instructions provided by the cookware manufacturer.<\/p>\n\n\n\n For traditional seasoned cast iron, hand-washing is generally recommended.<\/p>\n\n\n\n Dry it thoroughly after cleaning because leaving cast iron wet can promote rust.<\/p>\n\n\n\n If necessary, apply a thin layer of cooking oil afterward to maintain the seasoning.<\/p>\n\n\n\n Throwing your chef’s knife into the dishwasher may save a minute at the sink, but it isn’t necessarily good for the knife.<\/p>\n\n\n\n High-quality knives can be damaged by harsh dishwasher conditions.<\/p>\n\n\n\n The blade can knock against racks, utensils, and other objects during the wash cycle, potentially dulling or damaging the edge.<\/p>\n\n\n\n Certain knife handles can also deteriorate after repeated exposure to heat and moisture.<\/p>\n\n\n\n There’s another practical problem: a sharp knife hidden inside a loaded dishwasher can be a cutting hazard when unloading it.<\/strong><\/p>\n\n\n\n Wash good knives carefully by hand soon after using them.<\/p>\n\n\n\n Use warm water, mild dish soap, and a soft sponge or cloth.<\/p>\n\n\n\n Dry them promptly before storing them safely.<\/p>\n\n\n\n And never leave sharp knives hidden beneath soapy water where someone could accidentally grab the blade.<\/p>\n\n\n\n Beautiful copper pots, pans, mugs, and utensils can be expensive, and their appearance is one of the main reasons people buy them.<\/p>\n\n\n\n A dishwasher may affect that appearance.<\/p>\n\n\n\n Strong detergents and repeated dishwasher cycles can cause copper surfaces to discolor or lose their polished finish.<\/p>\n\n\n\n If you want your copper cookware to maintain its characteristic appearance, hand-washing is generally the safer option.<\/p>\n\n\n\n Use the cleaning method recommended by the manufacturer.<\/p>\n\n\n\n Usually, gentle hand-washing with appropriate products is preferable to aggressive cleaning.<\/p>\n\n\n\n Remember that decorative copper pieces and copper cookware intended for cooking may have different finishes, so always check the specific care instructions.<\/p>\n\n\n\n Aluminum requires a little more explanation because not every aluminum product behaves the same way.<\/p>\n\n\n\n Some modern aluminum cookware may be specifically designed for dishwasher use.<\/p>\n\n\n\n Other aluminum items can react with dishwasher detergents and become dull, darkened, spotted, or discolored.<\/p>\n\n\n\n Bare aluminum is particularly vulnerable.<\/p>\n\n\n\n Check the manufacturer’s label.<\/p>\n\n\n\n If an aluminum pot, pan, baking sheet, or utensil isn’t specifically marked dishwasher-safe, hand-washing is the cautious choice.<\/p>\n\n\n\n This is also a good general rule for unfamiliar cookware materials:<\/p>\n\n\n\n When you’re unsure, check before putting it in the dishwasher.<\/strong><\/p>\n\n\n\n This one isn’t completely black and white.<\/p>\n\n\n\n Many modern nonstick pans are marketed as dishwasher-safe.<\/p>\n\n\n\n However, that doesn’t necessarily mean dishwashing is the best method for maximizing the life of every nonstick surface.<\/p>\n\n\n\n Repeated exposure to aggressive detergent, high temperatures, and contact with other objects can contribute to wear on some coatings.<\/p>\n\n\n\n Older or already-damaged cookware deserves particular care.<\/p>\n\n\n\n Check the manufacturer’s instructions for your specific pan.<\/p>\n\n\n\n If hand-washing is recommended, use a soft sponge and ordinary dish soap.<\/p>\n\n\n\n Avoid abrasive scrubbers that could scratch the cooking surface.<\/p>\n\n\n\n If the coating is badly peeling, flaking, or otherwise deteriorating, follow the manufacturer’s replacement guidance rather than attempting to restore it with aggressive cleaning.<\/p>\n\n\n\n That beautiful plate inherited from your grandmother probably shouldn’t be treated like an ordinary dinner plate.<\/p>\n\n\n\n Fine china, hand-painted ceramics, antique dishes, and pieces decorated with gold or silver trim can be vulnerable to dishwasher conditions.<\/p>\n\n\n\n Repeated cycles may fade decorative patterns or damage metallic detailing.<\/p>\n\n\n\n Even if an item survives one wash, repeated dishwasher cleaning may gradually affect its appearance.<\/p>\n\n\n\n Wash delicate or sentimental pieces individually by hand.<\/p>\n\n\n\n Use mild dish soap, warm water, and a soft cloth or sponge.<\/p>\n\n\n\n Handle them carefully and avoid sudden temperature changes.<\/p>\n\n\n\n For antique or particularly valuable pieces, consider obtaining specialized care advice.<\/p>\n\n\n\n Reusable insulated bottles and travel mugs are another category where the manufacturer’s instructions matter.<\/p>\n\n\n\n Some newer models are completely dishwasher-safe.<\/p>\n\n\n\n Others aren’t.<\/p>\n\n\n\n Depending on the construction, repeated dishwasher exposure can affect finishes, seals, lids, or components designed to maintain insulation.<\/p>\n\n\n\n Water can also become trapped in complicated lid mechanisms.<\/p>\n\n\n\n Look for the dishwasher-safe symbol or check the manufacturer’s instructions.<\/p>\n\n\n\n If the item isn’t dishwasher-safe, wash the body and lid according to the recommended method.<\/p>\n\n\n\n Pay particular attention to removable seals and gaskets, where residue can accumulate.<\/p>\n\n\n\n This mistake deserves special attention.<\/p>\n\n\n\n Dishwasher detergent and ordinary hand-washing dish soap are not interchangeable.<\/strong><\/p>\n\n\n\n Regular dish soap is designed to produce lots of suds.<\/p>\n\n\n\n Inside a dishwasher, the machine’s spraying action can create an enormous amount of foam.<\/p>\n\n\n\n That foam may escape from the dishwasher and spread across the kitchen floor.<\/p>\n\n\n\n If you’ve ever seen a picture of a dishwasher surrounded by mountains of bubbles, ordinary dish soap is often the type of mistake being illustrated.<\/p>\n\n\n\n Use only detergent specifically formulated for automatic dishwashers.<\/p>\n\n\n\n That may include dishwasher tablets, pods, powder, or gel, depending on your machine and its manufacturer’s recommendations.<\/p>\n\n\n\n Plastic deserves its own mention because there’s no universal rule.<\/p>\n\n\n\n Some plastic containers are dishwasher-safe.<\/p>\n\n\n\n Others can warp or deteriorate when exposed to high temperatures.<\/p>\n\n\n\n Always look for the dishwasher-safe marking.<\/p>\n\n\n\n When the manufacturer recommends placing an item only on the upper rack, follow that instruction because the position of heating components varies among machines.<\/p>\n\n\n\n If there’s no information available and the container is important to you, hand-washing is the safer choice.<\/p>\n\n\n Many everyday stainless-steel utensils and cookware items can be dishwasher-safe.<\/p>\n\n\n\n But once again, check the manufacturer’s instructions, especially for expensive cookware or items containing multiple materials.<\/p>\n\n\n\n For example, a pan may have a stainless-steel body but a handle or decorative component requiring different care.<\/p>\n\n\n\n Fine crystal can be more delicate than ordinary drinking glasses.<\/p>\n\n\n\n Depending on the manufacturer and type of crystal, dishwasher heat, detergent, or physical contact with other items may damage it or cause cloudiness over time.<\/p>\n\n\n\n If you’re dealing with valuable crystal, hand-washing is usually the more cautious approach unless the manufacturer explicitly approves dishwasher cleaning.<\/p>\n\n\n\n Automatic dishwasher detergent has a difficult job.<\/p>\n\n\n\n It must remove grease, dried food, starches, and other residue without someone physically scrubbing the dishes.<\/p>\n\n\n\n The dishwasher also relies on hot water, spray pressure, and controlled washing and drying cycles.<\/p>\n\n\n\n Those conditions are perfectly appropriate for items designed to tolerate them.<\/p>\n\n\n\n But materials such as unfinished wood, seasoned cast iron, delicate decorations, and some specialty finishes require gentler treatment.<\/p>\n\n\n\n That’s why an item can technically become “clean” in a dishwasher while simultaneously becoming damaged.<\/p>\n\n\n\n One of the easiest ways to avoid mistakes is also one of the most frequently ignored:<\/p>\n\n\n\n Read the label.<\/strong><\/p>\n\n\n\n Manufacturers generally provide care instructions for cookware, storage containers, bottles, kitchen appliances, and utensils.<\/p>\n\n\n\n If an item says:<\/p>\n\n\n\n Dishwasher Safe<\/strong> \u2014 follow any additional placement instructions.<\/p>\n\n\n\n Top Rack Only<\/strong> \u2014 don’t put it elsewhere in the machine.<\/p>\n\n\n\n Hand Wash Only<\/strong> \u2014 keep it out of the dishwasher.<\/p>\n\n\n\n When there is no label and you aren’t sure, washing the item by hand is usually safer than experimenting with something expensive or sentimental.<\/p>\n\n\n\n Blender jars, food processor bowls, mixer attachments, air-fryer accessories, coffee-machine components, and similar items can be especially confusing.<\/p>\n\n\n\n Some removable components may be dishwasher-safe while other parts from the same appliance aren’t.<\/p>\n\n\n\n Never assume that because one component can go into the dishwasher, every removable component can.<\/p>\n\n\n\n And electrical bases, motors, power cords, and other electrical components should never simply be submerged or placed in a dishwasher.<\/strong><\/p>\n\n\n\n Consult the appliance manual for cleaning instructions.<\/p>\n\n\n\n Taking care of what goes into your dishwasher isn’t only about protecting dishes.<\/p>\n\n\n\n Before loading the machine:<\/p>\n\n\n\n Scrape large pieces of food into the trash or compost.<\/p>\n\n\n\n Make sure small objects cannot fall through the racks.<\/p>\n\n\n\n Don’t allow utensils to obstruct the spray arms.<\/p>\n\n\n\n Use the correct type and amount of dishwasher detergent.<\/p>\n\n\n\n Check that fragile items aren’t touching objects that could strike them during the cycle.<\/p>\n\n\n\n And don’t overload the machine.<\/p>\n\n\n\n Good loading allows water and detergent to reach the surfaces they’re supposed to clean.<\/p>\n\n\n\n When you’re standing in front of the dishwasher wondering whether something belongs inside, ask yourself three questions:<\/p>\n\n\n\n Is it labeled dishwasher-safe?<\/strong><\/p>\n\n\n\n Could heat, moisture, or strong detergent damage it?<\/strong><\/p>\n\n\n\n Would I be upset if its finish, shape, or coating changed?<\/strong><\/p>\n\n\n\n If you’re uncertain about any of those questions, spending a minute washing the item by hand may save you from replacing it later.<\/p>\n\n\n\n Dishwashers are incredibly convenient, but they’re not designed for every object in your kitchen.<\/p>\n\n\n\n Wooden utensils, traditional cast iron, quality knives, delicate china, copper, certain aluminum products, some nonstick cookware, and some insulated containers are generally better candidates for careful hand-washing unless their manufacturers specifically state otherwise.<\/p>\n\n\n\n And one rule deserves repeating:<\/p>\n\n\n\n Never substitute ordinary hand dish soap for automatic dishwasher detergent.<\/strong><\/p>\n\n\n\n A few extra minutes of proper care can help your cookware, knives, dishes, and kitchen tools last much longer.<\/p>\n\n\n\n Before putting an unfamiliar item into your next load, check its care instructions.<\/p>\n\n\n\n Your dishwasher \u2014 and your favorite kitchenware \u2014 may thank you.<\/p>\n\n\n\n <\/p>\n","protected":false},"excerpt":{"rendered":" A dishwasher can be one of the most useful appliances in your kitchen. Load the dirty dishes, add detergent, press a button, and let the machine handle the hard work. But there’s an important catch: Not everything in your kitchen is dishwasher-safe. Dishwashers combine hot water, powerful detergents, high-pressure spray, and heat during drying. That’s … Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":55,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-54","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/posts\/54","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=54"}],"version-history":[{"count":1,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/posts\/54\/revisions"}],"predecessor-version":[{"id":56,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/posts\/54\/revisions\/56"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=\/wp\/v2\/media\/55"}],"wp:attachment":[{"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=54"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=54"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/easyrecipes.el-maarifa.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=54"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}1. Wooden Cutting Boards and Wooden Utensils<\/h2>\n\n\n\n
![\"\"](\"https:\/\/easyrecipes.el-maarifa.com\/wp-content\/uploads\/2026\/09\/image-13.png\")
<\/figure>\n<\/div>\n\n\nWhat to Do Instead<\/h3>\n\n\n\n
2. Cast-Iron Cookware<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
3. Good Kitchen Knives<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
4. Copper Cookware<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
5. Aluminum Items That Aren’t Labeled Dishwasher-Safe<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
6. Nonstick Cookware \u2014 Unless the Manufacturer Says It’s Dishwasher-Safe<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
7. Delicate China, Hand-Painted Dishes and Gold-Trimmed Pieces<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
8. Insulated Travel Mugs and Vacuum Containers \u2014 Unless They’re Specifically Dishwasher-Safe<\/h2>\n\n\n\n
What to Do Instead<\/h3>\n\n\n\n
Bonus: Never Put Ordinary Dish Soap in Your Dishwasher<\/h2>\n\n\n\n
What Should You Use?<\/h3>\n\n\n\n
What About Plastic Containers?<\/h2>\n\n\n\n
<\/figure>\n<\/div>\n\n\nCan Stainless Steel Go in the Dishwasher?<\/h2>\n\n\n\n
What About Crystal Glassware?<\/h2>\n\n\n\n
Why Dishwasher Detergent Can Be Hard on Certain Materials<\/h2>\n\n\n\n
The Dishwasher-Safe Symbol Matters<\/h2>\n\n\n\n
Don’t Forget Small Appliance Parts<\/h2>\n\n\n\n
How to Protect Your Dishwasher<\/h2>\n\n\n\n
A Simple Rule That Can Save Expensive Kitchenware<\/h2>\n\n\n\n
The Bottom Line<\/h2>\n\n\n\n