The video shows a person using a brush to clean a mug in a sink. The person places the mug under the brush and turns it to ensure that all sides of the mug are cleaned. The brush appears to be a specialized cleaning tool with bristles on both sides. The sink is made of stainless steel, and there is a faucet visible in the background. The person's hands are visible as they hold the mug and turn it under the brush. The water in the sink is running, indicating that the cleaning process is active. The mug appears to be white with a red rim.