How to Make Potato Starch (with Pictures) wikiHow
Jul 19, 2020· Grind the starch into a powder. It is best to do this in a clean coffee grinder, but you can try a food processor or blender as well. This will break up any remaining clumps and make it fine and powdery, just like the kind you''d get in a store. 5. Store the potato starch in a small jar. ...