Chloe Zhang
There are many reasons why a fridge might smell like chemicals or plastic. Sometimes, the cause can be as simple as food gone bad, or a rotten lemon, but other times, it can be due to more serious issues such as a refrigerant leak, which can be harmful to health and the environment. New refrigerators often have a distinct odour from plastic parts and manufacturing materials releasing gases as they settle in, a process called off-gassing. This usually isn't dangerous and the smell typically disappears within a few weeks.
| Characteristics | Values |
|---|---|
| Cause of plastic smell in fridge | Odors from manufacturing trapped inside the packaging due to insufficient ventilation |
| How to remove the plastic smell | Cleaning or ventilation, wiping down the interior with a mixture of baking soda and water, leaving the doors open for a few hours to air out the fridge |
| Cause of chemical smell in fridge | Refrigerant leak, melting plastic, rotten food, contaminated or old water filter, certain foods decomposing, storing nail polish, beauty or cleaning products, medications, cosmetics, and household products |
| Action to be taken in case of a chemical smell | Turn off the fridge, open windows, call a professional |
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What You'll Learn
The fridge is new and off-gassing
If you've just bought a new fridge, it's possible that the plastic smell you're noticing is due to a phenomenon known as "off-gassing." This occurs when volatile organic compounds (VOCs) are released from the materials used in the manufacturing of the appliance. These VOCs can include chemicals such as formaldehyde, benzene, and toluene, which can have a strong odor. Off-gassing is a normal and expected occurrence with new appliances, and it usually diminishes over time as the chemicals dissipate. However, it can be concerning, especially if the smell is strong or persistent.
To mitigate the effects of off-gassing, there are a few steps you can take. Start by allowing your new fridge to air out before you install it. Keep it in a well-ventilated area, with all of its doors and compartments open, for at least 24 hours before you plug it in. This will help accelerate the off-gassing process and reduce the initial concentration of VOCs when you bring the fridge inside. Once the fridge is plugged in and running, you can further facilitate off-gassing by leaving it empty (if possible) and keeping the doors open as much as practical for the first few days.
Additionally, consider placing charcoal or baking soda packets inside the fridge to help absorb the odors. You can also leave a bowl of vinegar or coffee grounds inside to help neutralize the smell, replacing them every few days until the odor dissipates. Good ventilation is key, so ensure your kitchen or room where the fridge is kept is well-ventilated. If possible, keep a window open to promote airflow.
While off-gassing is typically not harmful, it's important to monitor how it affects you and your family's health. Some individuals may be more sensitive to VOCs and experience headaches, nausea, or respiratory issues. If anyone in your household exhibits these symptoms, consult a medical professional and consider moving the fridge to a different location or taking additional steps to reduce off-gassing, such as contacting the manufacturer for advice specific to your model. Remember, the off-gassing smell should decrease over the first few weeks, and there are steps you can take to expedite this process and start enjoying your new fridge to the fullest.
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Rotten food
If your fridge smells like rotten food, the first thing to do is to check for any spoiled food, mould or other rot. Throw away expired condiments, old food and any leftovers you don’t plan to eat in the next couple of days. Pull out the drawers to get at all the corners that are not usually cleaned. Wipe down the shelves and drawers with warm water and dish soap. Make sure they are dry before returning food.
If you can't find any rotten food, the smell could be caused by mould or mildew inside your fridge. This is most easily fixed by cleaning your fridge out. Sometimes, if you have issues with your refrigerator ventilating correctly, mildew can build up in places where there is no food, but there is moisture. If you can smell it but can't see the source, you may need to partially disassemble your fridge to clean the motor.
Another possible cause is a gas leak. If you only smell the gas when you open the fridge, it’s likely from having rotted food in a Styrofoam container. If you can smell gas even when the fridge door is closed, call a technician—it could be a refrigerant leak or something not connected properly.
If your fridge is new, there may be a plastic odour because most of the components inside are made of plastic. This odour will dissipate over time. To speed up the process, you can clean the walls and shelves with a solution of one tablespoon of baking soda to one quart of warm water.
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Build-up of moisture
A plastic smell in your fridge could be caused by a build-up of moisture. This is often due to issues with the refrigerator's ventilation, which can cause moisture to accumulate in places where there is no food. This can lead to the growth of mould or mildew, resulting in an unpleasant plastic-like odour.
To address this issue, it is recommended to clean your refrigerator thoroughly and check for any obvious issues, such as unusual noises or visible faults. Pay close attention to areas where moisture tends to collect, such as the fan, compressor, and drip pan. The drip pan, in particular, can get dirty and cause odours if not cleaned regularly.
If the build-up of moisture is accompanied by frequent cycling of the refrigerator (turning on and off), it could indicate a problem with the defrost heater or the starter unit. In such cases, it is advisable to consult a technician to diagnose and resolve the issue.
Additionally, it is important to ensure that your refrigerator is properly ventilated to prevent moisture build-up. Check that the fans and cooling systems are functioning correctly, as improper ventilation can contribute to the accumulation of moisture and the subsequent plastic-like smell.
While less common, it is worth considering the possibility of melting plastic within the refrigerator. Inspect the lights, door switches, and the back of the freezer for any signs of discoloured or deformed plastic. This could indicate that a component, such as the defrost heater, is malfunctioning and needs to be addressed promptly.
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Refrigerant leak
If your fridge smells like chemicals, it could be due to a refrigerant leak. Refrigerant leaks are one of the most serious issues that can occur in refrigerators. Refrigerant, also known as Freon, is a colourless gas used as a cooling agent in refrigerators and air conditioners. When there is a refrigerant leak, it impacts the unit's performance and releases chemicals into the air.
Freon has a distinct smell, described as similar to chloroform or sweetish car coolant. If you notice an unusual odour coming from your fridge, it could be a sign of a refrigerant leak. Other signs of a refrigerant leak include visible damage to the appliance, such as cracks or holes in the tubing, the presence of an oily residue near the unit, and a hissing sound coming from the fridge. You may also notice that your food is not as cold as it should be, or there may be frost or ice buildup at the back of the fridge.
It is important to note that refrigerant poisoning can occur if you ingest substances like Freon. Symptoms of refrigerant poisoning can be mild at first but increase in severity over time with repeated exposure. If you suspect refrigerant poisoning, seek immediate medical attention to reduce the risk of permanent damage or fatal consequences.
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Cleaning and ventilation
If your fridge smells like plastic, there could be a few reasons. Firstly, if it is a new fridge, the chemical smell is likely due to the off-gassing of plastic parts and manufacturing materials as they settle. This process releases gases, which usually dissipate within a few weeks. To speed up this process, you can wipe down the interior with a mixture of baking soda and water, which helps absorb odors. Additionally, leaving the doors open for a few hours (with the power off) can help air out the fridge.
Another potential cause of the plastic smell could be related to the items stored in your fridge. Certain products, such as nail polish, beauty products, cleaning agents, medications, and even some foods, can release volatile compounds that get absorbed by the plastic parts of the fridge. Removing any such items from the fridge is recommended.
If the plastic smell is severe and persists, it may be due to a build-up of moisture or mold/mildew inside the fridge. In this case, cleaning the fridge thoroughly is necessary. Use a soft wet towel to clean the inside of the refrigerator to remove any odors. If the smell is coming from the back of the fridge, it may be necessary to partially disassemble it to clean hard-to-reach areas.
Proper ventilation is also crucial in preventing and removing odors. Ensure that the fridge's fans and cooling systems are functioning correctly, as issues with ventilation can lead to moisture buildup and subsequent odor issues. If you suspect a ventilation problem, it is best to consult a technician for further guidance.
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Frequently asked questions
New refrigerators often have a distinct odour from plastic parts and manufacturing materials releasing gases as they settle in. This process is called off-gassing and it isn't usually dangerous. The smell typically disappears within a few weeks.
You can speed up the process of getting rid of the plastic smell by wiping down the interior with a mixture of baking soda and water, which helps absorb odours. You can also leave the doors open for a few hours (with the power off) to air it out.
If your old fridge smells like burning plastic, it could be due to a faulty component. In one instance, the burning plastic smell was caused by a faulty starter unit.
If your old fridge smells like burning plastic, you should clean the back of the fridge and inspect it for any faulty components. If you are unable to identify the issue, you should call a technician to diagnose and fix the problem.
Some medications, cosmetics, and household products can release volatile compounds when cooled, creating a chemical smell. Certain foods can also release strong odours as they decompose, mixing with other smells to create chemical-like odours.
