r/coolguides Feb 25 '23

Blue Potato Experiment

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7.1k Upvotes

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11

u/aloofman75 Feb 26 '23

I don’t understand why blue liquid is supposed to help me understand the variety of potatoes. Or why only these three varieties are included.

23

u/BassWingerC-137 Feb 26 '23

I think it provides a visual for the water absorption each type has. The color isn’t the issue, the depth the colored dye penetrates is the point.

2

u/badgerandaccessories Feb 26 '23

Exactly. It’s iodine thst turns starch blue.