Takeout Containers (Aluminum) Put in Recycling Cart/Bin Empty and scrape all aluminum containers before recycling to remove food residue. Recycle the Cardboard Cover If Clean If the aluminum tray covers are clean, recycle them with other cardboard. If covers are part cardboard, part foil, put them in the trash. Ways to Reuse Wash and Reuse Avoid throwing out an aluminum container after just one use. Try washing and then reusing it. Did You Know? The Preferred Takeout Container Out of all the types of takeout containers — aluminum, cardboard, plastic and foam — aluminum is the easiest for recycling plants to recycle, while foam is the most difficult.