Animal products are used to process foods. For example, purified bone ash is used to refine sugar and animal fats may be used to control foam in making maple syrup. Gelatins are used to clarify beverages like fruit juices, beer and wine. Animals are also part of the package. Plastic, cardboard and paper containers, the cellophane and wax paper used to keep foods fresh and packages sealed, and the ink and glue used on the label, all involve animal products.
Animals help feed other animals too.
Pets, zoo animals, even other farm animals rely on animal-based feeds and feed supplements like vitamins and minerals. Many of these products are part of our every day lives. Animal products are used to make the plywood and drywall used in buildings and in the insulation that keeps them warm. Refrigerators and air conditioners use freon, a cooling agent that contains a derivative from animal fat. Egg whites are used in ceramic tile and catalase enzyme is used to make foam rubber.