Food Focus Thailand Journal, July 2021 issue, read topic highlight “Guidelines for cleaning production lines in food factories” The journal was honored by Associate Professor Dr. Narumon Matan, professor and food sanitation expert Food Science and Innovation Course from Walailak University In the knowledge of this issue Follow and read at http://www.foodfocusthailand.com/…/mobile/index.html… Subscribe and follow to read all the journals at https://www.foodfocusthailand.com/magazines/ https://m.facebook.com/foodfocusthailand/