The Battle between Toothpaste and Orange juice
Why is it that drinking OJ after brushing your teeth tastes so bitter? Scientists believe that surfactant, the ingredient in toothpaste that makes your mouth all bubbly, also suppresses the receptors on your tongue that control sweetness. Meaning, if less sweet receptors, the more your bitter receptors are left unbalanced, giving OJ that bitter taste. So the next time you drink OJ after brushing your teeth, you can thank Surfactant! (and also maybe Stannous (not Baratheon) Flouride
