A blue or violet laser pointer is all you need to prove that peanut butter glows in the dark. While choosy moms supposedly choose Jif, any old brand of peanut butter should illuminate with the proper tools.
The "science nerds" at the YouTube channel NurdRage demonstrate above how this sandwich staple displays a short "afterglow" after being subjected to the laser. NurdRage says the phenomenon occurs thanks to peanut butter's many phenolic compounds, the protective agents found in plant-based foods that absorb light in the ultra-violet spectrum. The compounds absorb the energy from the laser pointer, then re-emits it in a green color spectrum. (Turns out fluorescence occurs in plant-based oils, as well.)
The afterglow doesn't last long. But if you want a more dramatic effect, NurdRage shows that freezing your peanut butter will make its glow more impressive. (You can learn more about this process in NurdRage's lesson on fluorescence.)
So, what exactly are you waiting for? Order that sleek laser point on Amazon and stick your peanut butter in the freezer while you wait for the delivery. You're about to be the coolest person at your next party.
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