Dishwasher Safe: Pots And Pans

Putting pots and pans in the dishwasher is a divisive topic. While some people are strictly against it, others are happy to put all their kitchenware in the dishwasher. So, what's the right answer? Well, it depends on the type of pot or pan.

Some materials, like cast iron, wooden utensils, and uncoated aluminum, should be hand-washed. This is because the high temperatures and harsh detergents used in dishwashers can cause these materials to warp, crack, or become damaged. For example, cast iron pans will lose their seasoning and may rust over time if put in the dishwasher.

On the other hand, stainless steel cookware is generally considered dishwasher-safe. However, there is a risk of warping over time due to the humidity levels inside a dishwasher, so some people prefer to hand-wash these items as well.

Non-stick pans are perhaps the most controversial when it comes to dishwasher usage. Technically, some non-stick pans are designed to be dishwasher-safe. However, the high heat and detergents can cause the non-stick coating to chip or wear away over time. Additionally, non-stick pans are more likely to retain odors from scented detergents, which can then be transferred to your food.

So, while you can put some pots and pans in the dishwasher, it's important to consider the specific material and finish of your cookware before making a decision. Checking the manufacturer's instructions is always a good idea, and when in doubt, hand-washing is usually the safest option.

Non-stick pans are dishwasher-safe but hand-washing is recommended

Non-stick pans are often labelled as dishwasher-safe. However, hand-washing is recommended to prolong the lifespan of the pan and maintain its non-stick properties.

The high-pressure jets of hot water and the enzymes in most dish detergents can damage non-stick coatings. Even if the packaging states that your non-stick pan is dishwasher-safe, it is advisable to wash it by hand. This will help to prevent scratching, chipping, staining, and discolouration, as well as prolonging the pan's non-stick performance.

Non-stick pans are designed to be easy to clean by hand, requiring little more than a quick rinse with warm, soapy water. For burnt-on food, a mixture of water, baking soda, and vinegar can be used. To avoid damaging the non-stick surface, it is important to use a soft sponge or cloth, rather than a steel wool or coarse brush.

Before washing a non-stick pan, it is important to let it cool down naturally. Never run a hot pan under cold water, as this can cause the metal to warp, resulting in an uneven cooking surface.

Stainless steel is dishwasher-safe but may warp over time

Stainless steel is one of the best materials for cookware, as it is strong, scratch-resistant, and stylish. It is also dishwasher-safe. However, there are a few things to keep in mind if you want your stainless steel pots and pans to last a lifetime.

Firstly, always check the product packaging or manufacturer's instructions before putting new cookware in the dishwasher. Some pans might have a symbol engraved on their base to indicate if they are dishwasher-safe. When in doubt, it is best to wash stainless steel cookware by hand.

If your stainless steel pans have wooden or plastic handles or lid knobs, these might not be suitable for the dishwasher due to the high heat and moisture, which can cause warping or damage. Additionally, if your stainless steel cookware is manufactured with other non-stainless steel substrates, such as an aluminum base cap, it is best to avoid putting it in the dishwasher as the strong detergents can tarnish the aluminum.

While stainless steel is generally safe to put in the dishwasher, it is important to note that some foods can cause discoloration if left for long periods. Foods such as mustard, mayonnaise, vinegar, lemon juice, and tomato-based products should be rinsed off before putting the dishes in the dishwasher, especially if it will not be run immediately.

To maintain the life of your stainless steel cookware, it is recommended to handwash them whenever possible, use the right oil and the right amount when cooking, and wash them after every use to prevent grease buildup and stains.

Cast iron should never go in the dishwasher

Cast iron cookware is a kitchen staple for many, but it requires careful maintenance to keep it in good condition. One of the most important things to know about cast iron is that it should never be put in the dishwasher. Here are several reasons why cast iron and dishwashers don't mix, and how to properly care for your cast iron items.

The Dishwasher Ruins the Seasoning

Cast iron cookware is known for its durable non-stick surface, which is achieved through a process called seasoning. Seasoning creates a layer of polymerized oil, similar to food-safe Teflon, that protects the pan and makes it easier to cook with. The harsh detergents and water jets in a dishwasher strip away this seasoning, leaving your cast iron pan vulnerable to rust and other damage.

Dishwashers Can Cause Rusting

Cast iron is highly susceptible to rusting, especially when exposed to excess moisture. The prolonged exposure to water and detergent in a dishwasher can accelerate the rusting process, damaging your cast iron cookware. Even the heat-dry setting in some dishwashers can be problematic, as it tends to leave behind a lot of moisture, creating the perfect environment for rust to form.

Properly Cleaning Cast Iron

So, if you can't use a dishwasher, how do you clean cast iron? It's important to start cleaning your cast iron pan shortly after cooking, but always let the pan cool down first to avoid thermal shock, which can cause the pan to crack or warp. Use a metal spatula to scrape off any loose food scraps, then wash the pan with warm, soapy water and a dishcloth. Contrary to popular belief, mild dish soap is safe to use on cast iron. For stubborn, cooked-on food, you can use a plastic scrubber or a chain mail scrubbing pad. Avoid using steel wool, as it will damage the pan's seasoning. After rinsing and drying the pan, apply a small amount of oil and place it on the stovetop over low heat for about 10 minutes to maintain the seasoning and ensure the pan is completely dry before storing it away.

Fixing Cast Iron After Dishwasher Damage

If you accidentally put your cast iron pan in the dishwasher, don't despair! It can be rescued with a little TLC. First, assess the state of the pan. If it has rusted, you'll need to remove the rust by soaking it in a vinegar-water solution, using a baking soda and water paste, or scrubbing it with coarse salt. Then, use steel wool to scrub the pan, as the seasoning has already been damaged by the rust. Rinse, wash, and dry the pan thoroughly. Finally, re-season the pan by applying a thin layer of vegetable oil or shortening and placing it upside down in the oven at 350°F for about an hour. Repeat this process 2-3 times, or as needed, to restore the non-stick surface.

In conclusion, while dishwashers can be a convenient way to clean your dishes, cast iron cookware should always be washed by hand. With proper care and maintenance, your cast iron pans can last for years, providing a durable and non-stick surface for all your cooking needs.

Aluminium is dishwasher-safe but hand-washing is recommended

Aluminium cookware is often labelled as dishwasher-safe. However, hand-washing is recommended to preserve the quality of the material. This is because dishwashers use forceful jets of water and harsh detergents, which can cause discolouration, nicks, and pock marks on aluminium. The high heat of the appliance, the mineral content in the water, and the chemicals in the detergent can also lead to blackened aluminium cookware.

If you do decide to put aluminium cookware in the dishwasher, it is best to use the top rack and skip the high-heat drying cycle.

To prevent discolouration, it is recommended to rinse dishes with mustard, mayonnaise, vinegar, lemon juice, and tomato-based products before putting them in the dishwasher.

If your aluminium cookware has already discoloured, you can make a paste with cream of tartar and warm water, and scrub it with some elbow grease. You can also use lemon juice or vinegar to remove dark stains.

Check the bottom of the pot or pan for a dishwasher-safe symbol

When it comes to pots and pans, it's important to check if they are dishwasher-safe before cleaning them in your machine. The indication is usually on the bottom of the cookware, either written out or in the form of a symbol. These symbols are not universal and come in a variety of formats, but they typically feature dishes, plates, or glasses with water droplets falling on them. Sometimes, the symbol may also specify rack placement and drying instructions, such as "top rack only".

If you are unsure about whether your pots and pans are dishwasher-safe, you can always refer to the packaging, user manual, or contact the manufacturer directly. It is also worth noting that some materials, such as cast iron, wood, and non-stick pans, are not suitable for dishwashers and should be hand-washed instead.

Frequently asked questions