What is the difference between anaerobic and aerobic digestion? What is thermal hydrolysis or pyrolysis? How about food waste to water? This guide provides an overview and analysis of the various new and emerging food waste technologies available to help businesses make informed decisions about the type of technologies they should be exploring, and what would work best for their needs. This is especially useful for businesses and organizations that generate a large amount of food waste, such as hotels with food service outlets, restaurants, caterers, or buildings with cafeterias.