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Here’s Why OJ Tastes So Bad Right After You Brush Your Teeth

Have you ever brushed your teeth, then immediately had orange juice, and it’s the worst taste in the world?  Here’s the science behind why it happens.  There’s an ingredient that creates suds in toothpaste called sodium lauryl sulfate, or SLS for short.  It’s also in other stuff, like soap and shaving cream.  And one of the side effects when it hits your tongue is it temporarily kills your ability to detect sweet things.