In the video, a person is seen grating a potato over a bowl of water. The person is using a metal grater to shred the potato into small pieces. The bowl is placed on a countertop, and the person is holding the grater with one hand while grating the potato with the other. The water in the bowl is clear and appears to be at room temperature. The potato is being grated into the water, and the shredded potato is floating on the surface. The person continues to grate the potato until the bowl is filled with shredded potato.