Question: How do I get the taste of soap out of plastic mouthguard? I am using a molded plastic night mouth guard and I stored it in with my bathroom supplies and now it tastes like soap. I have tried soaking it in denture cleaner as well as rinsing it with extremely hot water (which really isn't that good for it). I have to get this taste out as this is a $600 appliance and I don't have the money to replace it.

Answer: soak it in either lemon juice or in white vinegar.  Zaps the other tastes right out of the plastic.
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