How to Make a Glowing Mud-Like Substance Out of Potatoes

Grant Thompson, also known as The King of Random, creates glowing oobleck, a non-Newtonian fluid that’s a suspension of starch in water, out of potatoes and tonic water in his latest video.

When I realized that potatoes could be chopped up and soaked to leach out the starch, of course the first thing I thought of was making oobleck. My mind was blown when I experimented with this process, and realized the starch would collect at the bottom of the dish, and would stay in place when the water and impurities were poured out.

Rollin Bishop
Rollin Bishop