What Happens When You Put Non-Dishwasher Safe Dishes In The Dishwasher?

While using a dishwasher is a convenient way to clean dishes, it’s important to only put dishwasher-safe items in the dishwasher.

Non-dishwasher safe dishes can result in various negative consequences, from damaged items to damaged dishwashers.

In this blog, we will explore the potential risks of putting non-dishwasher safe dishes in the dishwasher, and offer tips on how to ensure that your dishes and dishwasher remain in good condition.

What Happens When You Put Non-Dishwasher Safe Dishes In The Dishwasher

Discoloration:

When dishes that are not dishwasher safe are put in the dishwasher, they can undergo discoloration.

This is a frequent occurrence and can happen due to several reasons, with exposure to high heat being one of the common causes.

When a dish is not meant to tolerate the high temperatures involved in the dishwasher cycle, it may undergo discoloration or fade away over time.

The discoloration can be more evident in dishes made from specific materials, such as plastic or some metals.

To prevent this issue, it is crucial to invest in dishwasher safe plates such as the Mora Ceramic Flat Dinner Plates.

These plates are specially designed to withstand the high temperatures and harsh chemicals used in the dishwasher, ensuring that they maintain their vibrant colors and elegant appearance.

Additionally, they are made from durable ceramic material, making them sturdy enough to withstand frequent use and handling.

Warping:

When you use non-dishwasher safe dishes in the dishwasher, you may encounter a problem called warping.

This issue is particularly common with dishes made from plastic or other materials that tend to warp when exposed to heat.

Warping refers to a deformation of the dish, causing it to no longer sit flat on a surface or fit snugly with other dishes.

As a result, stacking dishes in a cabinet or arranging them on a table can become difficult and frustrating.

Therefore, it is crucial to check the label or manufacturer’s instructions of your dishes to ensure they are dishwasher safe to avoid this issue.

Melting:

Melting is a significant risk that can occur if you put non-dishwasher safe dishes in the dishwasher.

When a dish is made from a material that melts or deforms at high temperatures, it may melt or change its shape during the dishwasher’s high-temperature cleaning cycle.

Plastic cups or containers are common examples of dishes that can melt in the dishwasher.

Besides, certain types of decorative items or kitchen utensils may also be at risk of melting.

One possible solution to avoid the risk of melting non-dishwasher safe dishes is to use dishwasher-safe dishes, such as the MEKY Kitchen Dinner Set.

This set is made from high-quality, durable materials that can withstand the high temperatures of a dishwasher’s cleaning cycle without melting or deforming.

Cracking:

Certain types of dishes may be more prone to cracking when exposed to the heat and pressure of a dishwasher cycle.

This can happen if a dish is made from a material that is not designed to withstand the high temperatures and pressure that can occur in a dishwasher.

Chipping:

Chipping is a common problem that can occur when you put dishes that are not dishwasher safe in the dishwasher.

This happens because the material of the dish is not strong enough to withstand the movement and jostling during the dishwasher cycle.

As a result, the dish may chip and become sharp, which can be dangerous to handle.

This can be a concern because chipped dishes not only look unsightly, but also pose a risk to your safety.

Scratching:

This occurs when dishes are stacked too close together or if dishes rub together during the cleaning cycle.

Over time, the movement can cause scratches to appear on the surface of the dishes.

In some cases, these scratches can be deep enough to form shallow grooves, which can be difficult to remove.

Scratches can reduce the life of your dishes, as they are more susceptible to staining due to the shallow grooves.

Dulling of finishes:

Some types of dishes may lose their shine or luster over time when placed in the dishwasher.

This can happen if a dish is made from a material that is not designed to withstand exposure to the harsh chemicals and high temperatures that can occur in a dishwasher.

Over time, the finish on the dish may become dulled or worn, making it look old or unattractive.

Peeling:

I’ve experienced it firsthand – placing non-dishwasher safe dishes in the dishwasher can cause peeling.

This is because some items may be coated with a protective layer that won’t stand up to dishwashing detergent or extreme heat.

With prolonged exposure, this shield will eventually wear away, thus leaving the object open to further injury.

Corrosion:

Some types of dishes are more vulnerable to corrosion if they’re put in the dishwasher.

This is due to certain materials that corrode or rust when exposed to high temperatures and aggressive chemicals.

Eventually these dishes may display signs of rusting or corrosion, which can be tricky to get rid of.

Rusting:

Rusting is another potential consequence of putting non-dishwasher safe dishes in the dishwasher.

Certain materials are prone to rust when put in the dishwasher and exposed to water, detergents, and heat.

These materials will begin to corrode and rust over time, leading to unattractive dishes that are not only less pleasing to look at, but can also be dangerous.

Fading of colors:

You may notice that some of your dishes may not look as vibrant after being put in the dishwasher.

This is because these dishes may not be made from materials that can withstand high temperatures or harsh chemicals.

Consequently, the colors on the dish can start to fade and become paler over time, making it appear less attractive.

Loss of luster:

Sometimes when dishes are washed in the dishwasher, they may lose their shine or luster.

This can happen when the dish is made from a material that is not meant to withstand the strong chemicals or high temperatures used in the dishwasher.

Over time, these harsh conditions can cause the dish to become dull or lackluster, which can make it look less appealing.

If you notice that your dishes are losing their shine, it may be best to hand wash them or look for dishwasher-safe dishes made from materials that can withstand these conditions.

Bubbling:

Certain types of dishes may develop bubbles or blisters when placed in the dishwasher.

This can happen if a dish is made from a material that is not designed to withstand exposure to high temperatures or harsh chemicals.

Bubbles or blisters may form on the surface of the dish, which can be unsightly and may also compromise the integrity of the dish.

Staining:

Certain types of plates can take on discolorations when placed in the dishwasher for an extended period.

This is especially true if the plate is composed of a material that absorbs liquids easily or has a tendency to be stained.

With time, the plate may become dull and marred with marks, making it hard to clean and less visually pleasing.

Leaching of chemicals:

Some types of dishes may leach chemicals into your food when placed in the dishwasher.

This can happen if a dish is made from a material that is not food-safe or is coated with a material that is not designed to withstand exposure to high temperatures or harsh chemicals.

Chemicals may leach into your food, which can be harmful to your health.

Alteration of taste and smell:

When you put certain dishes in the dishwasher, not only can they leach chemicals into your food, but they might also cause your meals to taste or smell different.

This is because some materials used to make the dishes are sensitive to detergent or leave a lingering residue that affects the way your food smells or tastes.

Clouding of glassware:

Glassware, in particular, may become cloudy or hazy over time when placed in the dishwasher.

This can happen if the glass is exposed to high temperatures or harsh chemicals that can etch the surface of the glass.

The glass may become cloudy or hazy, making it less attractive and potentially compromising the clarity of the glass.

Damage to delicate or intricate designs:

Certain varieties of cookware can feature elegant or intricate detailing which may be prone to damage if put in the dishwasher.

This is because the cleaning agent or extreme heat may cause the decorations to become discolored or degraded in some other way.

Destruction of non-stick coatings:

Certain types of cookware featuring non-stick coatings may be vulnerable to damage when washed in a dishwasher.

This can occur if the coating is adversely affected by the detergent utilized, or if the heat generated during the cycle proves too intense.

Breakage:

Finally, putting non-dishwasher safe dishes in the dishwasher can also lead to breakage.

This can happen if the dish is made from a material that is not strong enough to withstand the jostling and movement that can occur during a dishwasher cycle.

When a dish breaks, it can be dangerous to handle and may also damage other dishes in the dishwasher.

What Items You Should Never Put In The Dishwasher

Lots of items are not dishwasher safe, and you might be surprised by some of them. Below we will give some items, you should never put in the dishwasher:

Wooden Items

Dishwasher detergents may strip the natural oils that keep wooden utensils and cutting boards from drying out, making them more susceptible to rotting.

The wood will begin to crack once those oils are removed. You need to wash the wooden items by hand with a mild detergent in warm water.

Then leave them for a few hours to dry naturally, away from direct heat and sunlight.

If you notice that the wood is soggy, damp, or distorted, don’t allow them to soak.

Besides, you can use 1/4 cup of bleach in 1/2 gallon of water to disinfect the wooden items.

Kitchen Knives

Sharp knives should never go in the dishwasher as they can become dull quickly.

In addition, putting them in the dishwasher can damage the blades and make them less effective.

Instead of putting your sharp kitchen knives in the dishwasher, you should hand-wash them with detergent or shop.

Non-Stick Pans

Dishwasher detergents can damage the non-stick coating on your pans.

In addition, the high temperatures of the dishwasher can cause the non-stick coating to break down and release harmful chemicals into your food.

It is best to hand-wash your non-stick pans with a mild detergent and warm water to prevent damage.

If you want to put them in the dishwasher, use the low heat setting and skip the drying cycle.

Cast Iron Pans

Just like non-stick pans, the high temperatures of the dishwasher can cause the seasoning on cast iron pans to break down.

This will make your food stick to the pan and cause it to rust.

To clean a cast iron pan, simply rinse it with hot water and scrub it with a stiff brush. If there is food stuck on the pan, you can use a little bit of soap.

However, be sure to rinse the pan well to remove all the soap. Then, dry the pan immediately with a clean towel.

Thin Plastic Containers

Thin plastic containers can warp in the dishwasher, which means they will no longer seal properly.

This can cause your food to spoil and allow bacteria to grow. To clean thin plastic containers, simply wash them by hand with shop and water.

Graters And Sieves

Do not put sharp-edged kitchen utensils in the dishwasher. Graters and sieves can scratch the plastic covering on the racks, leading to rusting.

If you put dishes with tiny holes in the dishwasher, the water stream will have a tough time removing all of the food particles.

That’s why you need to clean them by hand for the best results.

Aluminum Pans And Cookware

Aluminum pans and cookware can discolor and become dull and darkens in the dishwasher.  

Most aluminum cookware is not anodized, so harsh cleansers are more susceptible to pitting and corrosion.

The alkalinity of the dishwasher detergent may cause white spots on the surface as well. Hand washing is still better even if the pan is advertised as “dishwasher safe.”

Insulated Glasses, Tumblers, And Thermal Containers

The high temperatures of the dishwasher can cause the insulation in these types of glasses, tumblers, and thermal containers to break down.

While some manufacturers say that their products are dishwasher safe, but it’s best to hand-wash them to extend their life.

On the other hand, you want to clean them by dishwasher, then use the low heat setting and place them on the top rack.

So, these are some of the things that you should never put in the dishwasher if you want them to last.

How To Know If Things Are Dishwasher Safe?

Check the Label or Manufacturer’s Instructions:

One of the easiest ways to determine if an item is dishwasher safe is to check for a label or instructions from the manufacturer.

Many products will come with a label indicating whether they can be washed in the dishwasher, or they may have instructions on their packaging or on their website.

Look for Symbols:

Another way to determine if something is dishwasher safe is to look for symbols on the item itself.

The most common symbols are a glass with water droplets, indicating it can be washed in a dishwasher, and a glass with an X through it, indicating that it should not be washed in a dishwasher.

Consider the Material:

Some materials are not suitable for dishwasher use. For example, delicate glassware or ceramics with intricate designs may be damaged in the dishwasher.

Additionally, items made from materials such as wood, cast iron, or copper should never be washed in the dishwasher, as it can damage the finish or cause rusting.

Check for Heat Resistance:

Dishwashers use high temperatures to clean dishes, so it’s important to check if an item can withstand the heat.

Items made from materials like plastic or silicone may warp or melt in the dishwasher, while some metal items may discolor or become damaged.

Consider Age and Condition:

Older or more delicate items may not be suitable for dishwasher use, even if they don’t have any specific warnings or symbols indicating as such.

Likewise, items that are chipped or cracked may not be able to withstand the pressure and heat of the dishwasher.

FAQs

Final Thoughts

Putting non-dishwasher safe dishes in the dishwasher can lead to a variety of negative consequences, ranging from damaged items to damaged dishwashers.

It’s important to always check the manufacturer’s instructions or labels, look for symbols indicating dishwasher safety, and consider the material, age, and condition of the item before placing it in the dishwasher.

When in doubt, it’s always best to hand wash the item to prevent any potential damage or safety hazards.