Waste is any substance discarded after primary use, or is worthless, defective and of no use. A by-product, by contrast is a joint product of relatively minor economic value. Food waste often refers to food not ultimately consumed by humans that is discarded or recycled, such as plate waste (i.e., food that has been served but not eaten), spoiled food, or peels and rinds considered inedible. Composting, recycling, and proper disposal are effective methods to manage kitchen waste. By practicing these methods, we can help reduce waste in landfills and protect the environment. In addition, we...