human
How do I make a homemade ice pack?
assistant
To make a homemade ice pack, you will need some water and an ice cube tray. Fill the ice cube tray with water until it is about three-quarters full. Place the tray in the freezer for several hours or overnight until the cubes are frozen solid. Once they are frozen, remove the ice cube tray from the freezer and place it in a sealed container. The ice pack should stay cold for up to 24 hours.