The video shows a close-up of a person's hand holding a glass jar filled with oats. The person pours water into the jar, causing the oats to expand and rise to the top. The oats are light brown in color and appear to be of a coarse texture. The water is clear and flows smoothly into the jar. The person's hand is steady as they hold the jar, and the background is blurred, focusing the viewer's attention on the jar and the oats.