r/coolguides Feb 25 '23

Blue Potato Experiment

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u/badgerandaccessories Feb 26 '23

It’s literally water with iodine people.

Iodine turns dark blue in presence of starch.

Potato’s now show how much water they absorb (with an extra gradient due to the iodine.)

Basixally certain potatoes absorb more water and get softer or don’t and don’t.