It is recommended to hand wash velvet in cold water using a gentle detergent. Gently swirl the fabric in the water and then rinse thoroughly with cold water. After rinsing, gently press out any excess water and lay the velvet flat to dry. Avoid hanging velvet as it can stretch and lose its shape.
If you are unsure about how to properly clean your velvet item, it may be best to take it to a professional dry cleaner who specializes in working with delicate fabrics.