It's important to know taste doesn't come down to smell receptors alone. It may also differ from one person to the other simply because of the culture or house they grew up in. "For example, many Australians have problems with the intensity of fish sauce, yet South-East Asian populations find it an integral part of their flavoring," said Keast. However, while you can sometimes force yourself to like the taste of certain food, Keats says your genetic smell receptors will never change.
If you constantly have a soapy taste in your mouth, Healthline notes that overexposure to sodium fluoride could be the reason. While it is often found in toothpaste and water, when you consume or are exposed to too much of the chemical, you're likely to experience a soapy taste in your mouth, along with other symptoms such as diarrhea, vomiting, and abdominal pain, among others. In this case, you should seek help from a medical professionally immediately as you may actually have fluoride poisoning.
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