Why does orange juice taste bad after you brush your teeth?
22 January 2026

Why does orange juice taste bad after you brush your teeth?

Chemistry For Your Life

About

#037 Rebroadcast

It's the lesson we've all had to learn the hard way. The pain our mouths feel when we take a treacherous swig of the post-brush poison. This week, Melissa and Jam delve into all of our childhoods to figure out the chemistry of this infamous mixture. Why does it taste so bad? Who's fault is it, the toothpaste or the orange juice? Also while we're at it, why is it called toothpaste? Nevermind, I'm not sure we'll be able to get to the bottom of that part.

References from this episode

    Why Does Toothpaste Make Orange Juice Taste Bad? - American Chemical Society Why Does Orange Juice Taste So Bad After Brushing? - South Springs Dental Group
 

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