a small, hourglass-shaped container that holds a fixed amount of sand. When the timer is turned upside down, the sand moves from one half to another in a three-minute period, the time required to cook a medium-sized egg to the soft-boiled stage.
a small, hourglass-shaped container that holds a fixed amount of sand. When the timer is turned upside down, the sand moves from one half to another in a three-minute period, the time required to cook a medium-sized egg to the soft-boiled stage.