From the AFCMA (Aluminum Foil Container Manufacturers Association):
Selected by a number of organizations like Meals on Wheels for its versatility, low cost, and convenience, aluminum possesses many practical features:
The only packaging that can withstand extreme temperature changes, aluminum can go from the freezer to the oven to the table – saving time during food preparation.
It’s true – aluminum foil containers can be used in microwave ovens! In fact, foods heat more thoroughly in aluminum than in plastic and retain more of their original texture and flavor.
Aluminum containers are leak-resistant, sturdy, stackable, and keep foods fresher than plastic or styrofoam containers.
Easy clean up
Choose easy clean-up or no clean-up. After cooking, save your aluminum containers and recycle them.
Tri-ovenability (there’s that word again!)
Not only can aluminum containers be used in a microwave oven, they also stand up to conventional ovens and toaster ovens without melting, charring, or compromising the food’s original flavor.
Its worth repeating: aluminum is Recyclable!