This document discusses Good Manufacturing Practices (GMP) which are systems to ensure products meet food safety, quality, and legal requirements. It outlines how GMP deals with contamination from people, food materials, hazardous materials, and miscellaneous materials. GMP principles include maintaining a clean and hygienic manufacturing area, and controlling environmental conditions to prevent cross-contamination. Personal hygiene is the first step, including proper hand washing before and after various activities. Other hygienic practices covered include wearing hair nets, gloves, and face masks during food preparation, cooking, cleaning, and serving to protect food from germs and bacteria.