Possible Clues:

• Coffee pot
• Proctor __: kitchen appliance brand
• Proctor ___ (small appliance brand)
• Glass ingredient, sometimes
• Finely ground quartz
• Proctor __ appliances
• Mineral in the form of quartz or flint
• Proctor-___ (kitchen appliance brand)
• Big name in kitchen appliances
• Big name in coffeemakers