Possible Clues:

• Kitchen item to work, holding in first hint of flavour
• Wrapping it up, left without dope
• Very thin and flexible sheet of aluminium
• Leyden jar lining
• Something to use on leftovers
• Metal sword that's used to protect food
• Thin metal sheet
• Food wrapping made of aluminium
• Thin wrapping can frustrate
• Information's included in application. That's a wrap!