Sofia Martinez
Plastic containers are a convenient way to store food, but they can be a hassle to clean. While some sources suggest replacing plastic containers with glass ones, this may not be a feasible option for everyone. The good news is that most plastic containers can be washed in the dishwasher, provided you follow certain guidelines. Firstly, it's crucial to determine whether the plastic item is dishwasher-safe. This label indicates that the plastic can withstand the high heat and detergents of a dishwasher without warping or releasing harmful chemicals like BPA. Disposable plastic containers, on the other hand, should be avoided in dishwashers as they're not designed for reusability and may contain harmful chemicals. When loading plastic containers, always place them on the top rack, facing downward, and avoid stacking them to ensure effective cleaning. Additionally, consider using mesh laundry bags for small plastic items to prevent them from falling into the dishwasher's heating element. By following these simple tips, you can safely and effectively clean your plastic containers in the dishwasher.
| Characteristics | Values |
|---|---|
| Placement | Top rack, away from the heating element |
| Container orientation | Face-down and towards the middle |
| Container condition | Dishwasher-safe, no visible damage, deformation, discolouration or lingering stains |
| Container type | Reusable, BPA-free, labelled as dishwasher-safe |
| Cycles | Avoid deep clean or sanitising cycles |
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What You'll Learn
Check if containers are dishwasher safe
To check if your plastic containers are dishwasher safe, start by looking for a dishwasher-safe symbol. These symbols are not universal and come in a variety of formats, but they often feature a couple of circles, one smaller and one larger, that represent plates. These cartoon plates may appear to be rained on, with images of water droplets or diagonal lines. Sometimes, the symbol may indicate that the item should only be placed in the top rack.
Another way to check is to look for a label that says "dishwasher safe". If the item is labelled "microwave safe", it is also likely safe for the dishwasher. Additionally, check the recycling number on the container and research whether that type of plastic is dishwasher safe. For example, plastics with the recycling number 5 are generally top-rack safe.
If there is no clear indication, you can refer to the manufacturer's guide or contact the manufacturer directly to confirm if the container is dishwasher safe. It is important to know the limits of your plastic containers, as there is uncertainty about what is safe and what is not. Constant wear and tear on plastic, including running it through the dishwasher, could cause chemicals to leach out of the plastic when heated.
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Place containers on the top rack
When loading plastic containers into the dishwasher, it is important to place them on the top rack, facing downward. This is because the heating element is located at the bottom of the dishwasher, and plastic can become warped if it gets too hot. By placing them on the top rack, you keep the plastic items away from direct heat.
Make sure that the plastic containers fit securely in the top rack. If they are too small, they might slip through the gaps, potentially blocking the washer arms or landing on the heating element. It is best to avoid placing containers with small openings on the top rack, as they may not be suitable for this placement.
When positioning the containers, ensure they are not piled on top of each other or placed too close together. This will allow the water to drain properly and ensure a thorough cleaning. The inside of the containers should face downward toward the middle of the dishwasher, where the spray jets are located. This placement ensures that the containers are effectively cleaned, and any water drains out properly.
It is crucial to check if your plastic containers are dishwasher-safe before placing them in the dishwasher. Most plastic containers made for food storage are safe for the dishwasher and are designed to withstand the heat and detergents of a dishwasher cycle. However, disposable containers, such as food containers and water bottles, are not dishwasher-safe. They are not designed to withstand high temperatures and may contain harmful chemicals like BPA that can leach into your food or drink when exposed to heat.
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Avoid deep clean or sanitising cycles
When loading plastic containers into your dishwasher, it is important to avoid using deep clean or sanitising cycles. This is because plastic items, even those labelled as dishwasher-safe, can be affected by the high temperatures of these cycles.
The top racks and bottom racks of dishwashers may be configured differently depending on the model. Generally, the top rack is intended for plastic items, keeping them away from the heating element at the bottom of the dishwasher. Even with this separation, the water in dishwashers is much hotter than tap water, and the detergents are more potent than liquid dish soap. Therefore, it is best to avoid deep clean or sanitising cycles, as these can cause plastic to warp or become damaged.
Disposable plastics, such as food containers and water bottles, should be avoided altogether when it comes to the dishwasher. These are not designed to withstand heat and will warp and become unusable. They often contain harmful chemicals such as BPA, or BPA alternatives, that can leach into your food or drink during the washing cycle.
Even plastics labelled as BPA-free may contain similar compounds with potential health effects, so it is always worth checking if a product is genuinely BPA-free before putting it in the dishwasher. Additionally, avoid using any containers that show signs of damage, deformation, discolouration, or lingering stains, as this can indicate that the plastic has deteriorated and may not be safe for use.
To summarise, when loading plastic containers into your dishwasher, opt for the top rack and avoid deep clean or sanitising cycles. Disposable plastics should be avoided altogether, and even plastics labelled as BPA-free should be carefully considered due to potential alternative compounds. Always check for signs of deterioration before using any plastic containers in your dishwasher.
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Face containers downwards
When loading plastic containers in the dishwasher, it is important to ensure that they are placed facing downwards. This is because plastic items, especially those that are not labelled as dishwasher-safe, can become warped if exposed to high temperatures. By facing the containers downwards, you can help prevent them from flipping over during the wash cycle and filling with dirty dishwater.
To ensure that your plastic containers remain secure and face downwards throughout the wash cycle, it is recommended to place them on the top rack of the dishwasher, away from the heating element at the bottom. This will help prevent the plastic from melting or becoming misshapen due to the heat. Make sure the containers fit securely and are not too small, as they may fall through the gaps and block the washer arms or land on the heating element.
Additionally, when placing the containers on the top rack, angle them so that they face down toward the centre of the dishwasher. This will allow for optimal cleaning as the water is usually directed towards the centre. It is also important to separate the containers and avoid stacking them, as this can hinder the cleaning process and prevent thorough washing.
By following these instructions and facing the plastic containers downwards in the top rack of the dishwasher, you can help ensure that they are thoroughly cleaned while also preventing any damage or warping to the plastic material.
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Avoid piling containers on top of each other
When loading plastic containers into your dishwasher, it is important to avoid piling them on top of each other. This is because plastic containers come in various shapes and sizes, and stacking them can prevent water from draining properly. By placing them separately, you ensure that each container is thoroughly cleaned and that no water pools in certain areas, such as the brim.
The American Cleaning Institute recommends avoiding piling containers to impede the cleaning process. This is crucial, especially with plastic items, as they should be kept away from the heating element at the bottom of the dishwasher. Plastic can warp if exposed to high temperatures, so it's best to place plastic containers on the top rack, facing downward, and ensure they fit securely.
Additionally, it is essential to check if your plastic containers are dishwasher-safe. Look for labels indicating "dishwasher safe" or "BPA-free." Some plastics, such as disposable food containers and water bottles, are not designed to withstand the heat of a dishwasher and can release harmful chemicals like BPA. To ensure food safety and avoid health risks, avoid using containers with visible damage, deformation, discoloration, or lingering stains.
To maximize the efficiency of your dishwasher, refer to the user manual or diagrams provided by the manufacturer for specific placement guidelines. These guidelines will help you determine the optimal arrangement for your plastic containers and other dishes to ensure they are thoroughly cleaned without obstructing the spray arms or jets.
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Frequently asked questions
Plastic containers that are labelled as dishwasher-safe can go in the dishwasher. These containers have been treated to withstand the sustained high heat in a dishwasher and will not melt, warp, or dissolve.
Containers made of PVC, polystyrene, and polycarbonate should not be put in the dishwasher. These plastics contain harmful chemicals that can break down and leak out in the dishwasher. Disposable plastic containers and bottles should also not be put in the dishwasher as they are not designed to withstand heat and may contain harmful chemicals.
Plastic containers should always be placed in the top rack, facing downward, and away from the heating element. Ensure that the containers fit securely and are not small enough to fall through the gaps.
Avoid piling the containers on top of each other or placing them too close together as this will impede the cleaning process. Also, make sure that the containers are not blocking the sprayer arms.
Most plastic containers are labelled, indicating whether they are dishwasher-safe or not. Look for labels such as "dishwasher-safe", "BPA-free", or specific types of plastic like "PETE/PET" or "HDPE".
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