Home » Multimedia » Podcasts » Food Safety Matters » Yiannas, McDonald, Besser, Hedberg: Fixing the Outbreak Investigation System
Food Safety Matters
Food Safety Matters is a podcast for food safety professionals hosted by the Food Safety Magazine editorial team – the leading media brand in food safety for over 20 years. Each episode will feature a conversation with a food safety professional sharing their experiences and insights of the important job of safeguarding the world’s food supply.
Frank Yiannas, M.P.H. is a renowned food safety leader and executive, food system futurist, author, professor, past president of the International Association of Food Protection (IAFP), and advocate for consumers. Most recently, he served under two different administrations as the Deputy Commissioner for Food Policy and Response at the U.S. Food and Drug Administration (FDA), a position he held from 2018–2023, after spending 30 years in leadership roles with Walmart and the Walt Disney Company.
Drew McDonald is the Senior Vice President of Quality and Food Safety at Taylor Fresh Foods in Salinas, California, where he oversees the quality and food safety programs across the foodservice, retail, and deli operations under both FDA and U.S. Department of Agriculture (USDA) jurisdictions. Mr. McDonald works with an impressive team developing and managing appropriate and practical quality and food safety programs for fresh food and produce products. He has more than 30 years of experience in fresh produce and fresh foods.
John Besser, Ph.D. worked for ten years as Deputy Chief of the Enteric Diseases Laboratory Branch at the U.S. Centers for Disease Control and Prevention (CDC), where he was involved in national and global programs to detect, characterize, and track gastrointestinal diseases. Prior to CDC, Dr. Besser led the infectious disease laboratory at the Minnesota Department of Health (MDH) for 19 years and served as a clinical microbiologist at the University of Minnesota Hospital for five years. He currently works as an independent contractor and consultant. Dr. Besser is the author or co-author of more than 70 publications. He received his Ph.D. and M.S. degree from the University of Minnesota.
Craig Hedberg, Ph.D. is a Professor in the Division of Environmental Health Sciences at the University of Minnesota and Co-Director of the Minnesota Integrated Food Safety Center of Excellence. He promotes public health surveillance as a prerequisite for effective food control, and his work focuses on improving methods for collaboration among public health and regulatory agencies, academic researchers, and industry to improve foodborne illness surveillance and outbreak investigations.
Alissa Welsher, Ph.D. is a Senior Consultant at Elanco Poultry Food Safety. Dr. Welsher received her bachelor's degree in biological sciences from the University of Pittsburgh, a master's degree in poultry science, and a Ph.D. in cell and molecular biology from the University of Arkansas. Her area of expertise is in meat and poultry food safety, and she specializes in integrated pest management (IPM).
Brady Carter, Ph.D. is the Chief Scientific Officer at Carter Scientific Solutions. He specializes in water activity, moisture sorption, shelf-life stability, plant science, and wheat production and quality. He has 23 years of experience in research and development and previously was a Research Professor at Washington State University focusing on wheat end-use quality. Dr. Carter has pioneered work in using dynamic isotherms to investigate product stability and establish critical water activities for optimal shelf life. He also specializes in shelf-life loss and effective utilization of instrumentation to address product safety and quality issues. Dr. Carter holds a Ph.D. in Crop Science and Food Engineering and an M.S degree in Cereal Chemistry and Crop Science from Washington State University, as well as a B.A. degree in Botany from Weber State University.
To get a taste of the discussions that were happening at the 2026 Food Safety Summit, we spoke face-to-face with Roberta Wagner, M.Sc., Senior Vice President of Regulatory and Scientific Affairs for the International Dairy Foods Association (IDFA); Steven Mandernach, J.D., Executive Director of the Association of Food and Drug Officials (AFDO) and Sandra Eskin, J.D., CEO of STOP Foodborne Illness; Jacob Nelson, Asset Protection Sales Manager at the Sherwin-Williams Company and Feraas Aiameh, Food and Beverage Marketing Manager at the Sherwin-Williams Company; Conrad Choiniere, Ph.D., Director of the U.S. Food and Drug Administration’s (FDA's) Office of Microbiological Food Safety, Vanessa Coffman, Ph.D., Director of the Alliance to Stop Foodborne Illness, and Lone Jespersen, Ph.D., Founder and Principal of Cultivate SA; and Cindy Jiang, Senior Director, Global Food Safety Risk Management, Global Supply Chain at McDonald's (retired).
To get a taste of the discussions that were happening at the 2026 Food Safety Summit, we spoke face-to-face with Jeremy Zenlea, M.B.A., Vice President and Head of Health and Safety for EG America and Laurie Farmer, Director of the U.S. Food and Drug Administration’s (FDA’s) Office of Retail Food Protection; David Clifford, M.B.A., Director of Food Safety at Nestlé USA and Sara Mortimore, M.Sc., Founder of Sara Mortimore LLC and formerly Vice President for Food Safety at Walmart; Frank Curto, Ph.D., Vice President of Operations at Ecowize North America; and Drew McDonald, Senior Vice President of Quality, Food Safety, and Regulatory Affairs for Taylor Fresh Foods and Conrad Choiniere, Ph.D., Director of FDA’s Office of Microbiological Food Safety.
Larry Keener, CFS, PA is President and CEO of International Product Safety Consultants Inc. and an internationally regarded microbiologist and process authority in the food industry. His areas of expertise range from applied food microbiology to the development and application of novel preservation technologies.
In this bonus episode of Food Safety Matters, we speak to Jenny Du, Ph.D., Co-Founder of Apeel Sciences, about Apeel—a clean alternative to traditional post-harvest produce coatings and treatments—its transparent approach to disrupting an $11 billion industry.