Finally, an answer to one of those weird life questions you never ask anyone about. We all know OJ tastes like crap after we brush our teeth, but I, for one, have never thought to ask why…but now we know.

It’s a question you may never have asked, but if you’ve ever brushed your teeth before you’ve had a glass of juice, you’ll know why we had to seek professional advice.David Cannell is the scientific spokesperson for Questacon, “It’s because of a certain ingredient in toothpaste called sodium laurel sulfate. It actually blocks sweet sensors. All the other taste bud cells in your mouth are firing away nicely, but the receptors which pick up the sweet sensors are not working anymore.

Not only does it block the sweet sensors, it enhances the sour and bitter, so you get this massive influx of sour and bitter taste coming through the mouth.”
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Found via Exploding Boy

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