
There are many reasons why someone might experience a strange taste, such as burnt plastic, in their mouth. A plastic taste in the mouth can be caused by acid reflux, medication side effects, oral infections, or dysgeusia, a taste disorder that can be caused by smoking, medical conditions, medication, or poor oral hygiene. Additionally, plastic tastes can be caused by the use of plastic containers for food storage or eating, such as plastic Tupperware or coffeemakers, which can leach chemicals into food or drinks.
| Characteristics | Values |
|---|---|
| Dysgeusia | A taste disorder that can make food taste metallic, sour, bitter, or rancid |
| Causes of Dysgeusia | Smoking, certain medications, poor oral hygiene, dental prostheses, dry mouth, acid reflux, cancer, and cancer treatments |
| Plastic Taste in Mouth | May be due to acid reflux, medication side effects, oral infections, or food poisoning |
| Coffee tasting like plastic | Could be due to the type of plastic used in the coffee maker or the country of origin of the coffee maker |
| Plastic Tupperware tasting like plastic | May be due to the absorption of food particles, chemical deterioration, or the type of plastic used |
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What You'll Learn

Dysgeusia, a taste disorder
Dysgeusia is a taste disorder that affects an individual's sense of taste. People with this condition often experience a persistent metallic taste in their mouths, or perceive sweets as bitter, or taste nothing at all. In some cases, food may taste rancid or rotten, or there may be a constant nasty taste in the mouth.
Dysgeusia is different from ageusia, which is the complete loss of taste. The condition can affect one's appetite and quality of life, and in some cases, lead to malnutrition. It is characterised by an altered taste perception, which leaves patients with a distorted or unpleasant taste in their mouths.
There are several factors that can cause dysgeusia. These include infections, craniocerebral trauma, burning mouth syndrome, medication, operations or radiotherapy in the head area, brain tumours, multiple sclerosis, thyroid, liver or kidney diseases, and smoking. Certain medications, such as tricyclic antidepressants, cytostatic drugs, and over-the-counter allergy medications, can also affect one's sense of taste. Poor oral hygiene, dental prostheses, and certain medical conditions like dry mouth and GERD (chronic acid reflux) can also contribute to dysgeusia.
Treatment for dysgeusia addresses the underlying cause. This may involve quitting smoking, changing medication, or improving oral hygiene. Maintaining good oral hygiene, staying hydrated, and avoiding irritants can also help alleviate symptoms.
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Acid reflux disease and gastritis
A plastic taste in the mouth could be caused by acid reflux disease and gastritis, leading to a bad taste in the mouth. Acid reflux occurs when stomach acid enters the mouth, affecting taste function and causing a bitter or metallic taste. This condition is known as dysgeusia, a taste disorder that can make food taste metallic, sweet, sour, or bitter. Dysgeusia can be caused by various factors, including smoking, certain medications, oral infections, and medical conditions such as gastritis and acid reflux disease.
To manage acid reflux disease and gastritis, dietary adjustments and medications are often recommended. It is advised to avoid chocolate, peppermint, fatty foods, coffee, and alcoholic beverages. Additionally, certain foods like beans, cabbage, broccoli, carbonated drinks, and garlic should be consumed in moderation. Quitting smoking, staying hydrated, and managing stress through yoga, meditation, and deep breathing exercises are also beneficial. Over-the-counter medications like Pepto-Bismol and Zantac can provide relief. Maintaining a healthy diet and practicing good oral hygiene are crucial for alleviating symptoms.
In some cases, a plastic taste in the mouth may be caused by factors other than acid reflux disease and gastritis. It could be due to dental issues, side effects of certain medications, or oral infections. Additionally, conditions like burning mouth syndrome, head and neck cancers, and their treatments can affect the sense of taste. If the symptoms persist or worsen, consulting a healthcare provider is essential for evaluation and appropriate treatment.
While not a common occurrence, it is worth noting that issues with coffee makers or coffee beans could also result in a plastic taste in the mouth. This may be due to the leaching of chemicals or plastic from the coffee maker into the brewed coffee. Ensuring the use of high-quality coffee makers and fresh coffee beans can help mitigate this issue.
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Poor oral hygiene
Dysgeusia can make everything taste metallic, sweet, sour, or bitter. It is not a serious medical condition, but it can significantly impact one's enjoyment of food. Poor oral hygiene can lead to dental problems such as gingivitis, infections, and abscesses, all of which can contribute to dysgeusia and alter one's sense of taste.
Additionally, dry mouth, also known as xerostomia, is a common consequence of poor oral hygiene. It occurs when the salivary glands produce insufficient saliva, leading to a dry and sticky feeling in the mouth. This condition can be caused by various factors, including certain medications, aging, and inadequate fluid intake. The lack of saliva allows bacteria and leftover food particles to accumulate, resulting in a bad taste and potentially contributing to dysgeusia.
Practicing good oral hygiene is essential for preventing and addressing dysgeusia and other oral health issues. This includes regularly brushing and flossing twice a day, as well as scraping the tongue to remove bacteria. Maintaining proper hydration is also crucial, as a dry mouth can exacerbate taste issues. Additionally, avoiding irritants such as smoking and consuming acidic foods or drinks can help neutralize tastes and promote saliva production, improving overall oral health.
If the burnt plastic taste persists despite practicing good oral hygiene, it is advisable to consult a healthcare professional. They can evaluate your symptoms, rule out other potential causes, and provide appropriate treatment or recommendations.
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Plastic food containers
In some cases, a persistent plastic taste in the mouth may be due to other factors unrelated to plastic food containers. Dysgeusia, a taste disorder, can cause all foods to have a metallic, sour, or bitter taste. It can be caused by various factors, including certain medications, dental prostheses, poor oral hygiene, tobacco use, and certain medical conditions such as dry mouth, acid reflux, head and neck cancers, and cancer treatments. Another possible cause of a plastic taste in the mouth could be acid reflux disease and gastritis, which can lead to a bad taste in the mouth and may be managed through dietary adjustments and medications.
It is important to note that if you are experiencing a persistent plastic taste in your mouth, it is advisable to consult a healthcare professional for evaluation and appropriate treatment. They can help identify any underlying causes and recommend suitable solutions.
To summarize, while plastic food containers can sometimes affect the taste of food, there are also other potential causes of a plastic taste in the mouth that should be considered and addressed with the help of a healthcare professional if necessary.
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Plastic coffee makers
If your coffee tastes like burnt plastic, there could be a few reasons. Firstly, it could be due to the type of plastic used in the coffee maker. Certain types of plastic, such as polycarbonate and PVC, are known to leach chemicals that can impart a plastic-like taste to the coffee. This includes chemicals such as Bisphenol-A (BPA) and Phthalates, which are endocrine disruptors and can have adverse health effects. If the water reservoir on your coffee maker is marked with the recycling number 7, it likely contains BPA.
Additionally, the problem could be caused by debris or foreign objects in the water reservoir or tubing. This can include coffee grounds, dirt, or other particles that get cooked during the brewing process, resulting in a plastic-like taste. To address this issue, it is recommended to regularly clean the coffee maker, including the water reservoir and tubing, to remove any debris.
Another potential cause could be the storage of the coffee maker or its components. For example, if filters are stored near scented items like candles, the scent can permeate the plastic and affect the taste of the coffee. It is advised to store coffee filters and other components in a neutral, odourless environment.
Furthermore, the taste could be due to the "outgassing" of internal plastic components, especially in new coffee makers. Over time, the plastic components may release gases that can affect the taste of the coffee. To mitigate this, it is recommended to air out the coffee maker by leaving it open, allowing the internal plastics to dissipate any smells or tastes.
Lastly, the taste may be influenced by the quality of the water used in the coffee maker. Using filtered water or trying a different water source can help determine if the water is the source of the plastic-like taste.
To resolve the issue of plastic-tasting coffee, it is suggested to consider investing in a coffee maker without plastic components or one that does not allow plastic to come into contact with hot water or coffee, such as a French press, percolator, or ceramic pour-over filter cone. While this may sacrifice some convenience, it ensures that your coffee remains free from unwanted plastic tastes and potential toxic chemicals.
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Frequently asked questions
There could be a few reasons for this. It might be due to acid reflux disease or gastritis, which can cause a bad taste in the mouth. It could also be caused by certain medications or oral infections. If you're using a plastic coffee maker, it's possible that it's leaching out chemicals and affecting the taste of your coffee. Additionally, it could be a condition called dysgeusia, which is a taste disorder that can make everything taste metallic, sour, bitter, or sweet.
If the plastic taste is due to acid reflux, gastritis, or medication side effects, it's important to address those underlying issues. You can also try staying hydrated, improving your oral hygiene, and avoiding irritants such as smoking.
Common plastic Tupperware can be porous and absorb food particles, oils, and compounds. This can then affect the taste of any food stored in the container. Using a dishwasher with hot water and baking soda can help remove the food particles and neutralize odors.
Yes, switching to glass containers can help eliminate the plastic taste. Glass is impermeable to liquids and gases, so it won't absorb food particles like plastic can.
While an occasional plastic taste in coffee may not be harmful, regular exposure to leached chemicals could potentially be hazardous to your health. It's important to identify the source of the plastic taste and take appropriate measures to mitigate it.











































