Possible Clues:

• Kitchen gadgets
• Kitchen aids
• They act as reminders to the kitchen staff of the early bird and the ones that tend to go off?
• Sand chronometers
• Gets grime off the kitchen appliances
• They boil down to this ¿ three minutes here, three minutes there
• They deal with one sort of boil
• Do they count the enemy so the soldier can enter?
• Gets grime off, leaving sandy deposits in them