To make potato starch, grind the potato into mashed potato, then put it into the water and knead it until the water is turbid. Repeat this action until there is no starch to knead out. Then pour all the water together and let it stand until the water is clear. Finally, pour out the water and put the remaining starch in the sun.
The powder from washing potatoes is actually potato starch. Potato starch is often used when we cook. It can be used to thicken or size meat. In fact, potato starch can also be made at home without going out to buy it.
We need to grind the potatoes into mashed potatoes first. In this process, remember to soak all the mashed potatoes in water to avoid oxidation. After all the potatoes are ground into mashed potatoes, add water that can not cross its surface to the mashed potatoes, and knead the mashed potatoes repeatedly.
After the water becomes turbid, take out the mashed potatoes and put them into other containers. Repeat the above work until the mashed potatoes have no starch to rub out. Finally, pour all the water into a container and let it stand. After the starch is deposited, pour out the water. Finally, put the starch in the sun to dry.