Pour hot water(under 60ºC/140ºF) can keep food warm or sometimes can heat up some fluid food and pour cold water can cool the food. Made of stainless steel+high quality plastic, it is odorless, safe, non-toxic, anti-scalding and anti-fall. Washable and Durable: The baby bowl is easy to clean and can be used repeatedly , durable for long time use. Keep Steady: Comes with the anti-slip pad, so it can keep bowl safe and steady. Water injection hole also with a stopper to prevent leak.