all-foil food packaging containers grew into the complete line of die-formed and air-formed foil containers now sold in every supermarket. TV dinners, packed in compartmental trays, began to reshape the food products market. Packaging foil is now divided into three major categories: household/institutional foil, semi-rigid foil containers and flexible packaging. For decades, the use of foil has grown steadily in each of these.
- Food Preparation: Aluminum foil is “dual-ovenable” and can be used in both convection and fan-assisted ovens. A popular use of foil is to cover thinner sections of poultry and meat to prevent overcooking.
- Insulation: Aluminum foil is 88 percent reflective and is widely used for thermal insulation, heat exchanges and cable liners. Foil-backed building insulation not only reflects heat, aluminum sheet also provides a protective vapor barrier.
- Electronics: Foil in electrical capacitors provides compact storage for electric charges. Aluminum foil capacitors are commonly found in electrical equipment, including television sets and computers.