Possible Clues:

• Get grime off kitchen item
• Cook's hourglass-shaped gizmo, perhaps
• Sand-filled device traditionally used in the kitchen
• Source of a three-minute warning?
• Boardgame accessory, sometimes
• Get grime off and leave it in the kitchen as a reminder
• Sandglass that runs for three minutes
• Sandglass that runs for three (or four?) minutes
• Three-minute warning before breakfast?
• Time machine in kitchen keeps track on those underwater