NOVEMBER-DECEMBER 2019 FPT food protection trends Vol. 39, No. 6 | ISSN: 1541-9576 | Periodicals 6200 Aurora Avenue, Suite 200W, Des Moines, Iowa 50322-2864, USA Food Grade Dye for Assessment of Biofilm Removal from Stainless Steel by Cleaning and Sanitizing Agents SCIENCE AND NEWS from the International Association for Food Protection