In this video, we are isolating some starch from potatoes. We also talk a little bit about starch in general. Potato starch is better than corn starch because it forms a nice clear solution in water.

If you’ve ever grated a pound of potatoes—say, for latkes—and soaked them in water until you’re ready to fry, you may have noticed some white, powdery stuff sinking to the bottom of the bowl. That, my ...

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