Dr. Robert (Bob) Powitz is the principal and technical director of R.W.Powitz & Associates. There, he specializes in forensic sanitation services to industry, law firms, insurance companies, and government agencies. Bob has dedicated his career to food safety having worked for over 54 years to study, develop, and implement the most effective sanitation practices.

Bob has served as director of environmental health and safety and biological safety officer at Wayne State University where he also held the title of Adjunct Associate Professor in the College of Engineering. He also served as director of biological safety and environment for the U.S. Department of Agriculture as well as health director for five different towns in Connecticut. 

He is currently the public health consultant for the Bucks County, PA, Department of Corrections.

Bob received his undergraduate education in agronomy and plant pathology from the State University of New York and the University of Georgia. He holds a M.Sc. in Public Health with a specialty in institutional environmental health and a Ph.D. in environmental health, with specialties in environmental microbiology and epidemiology from the University of Minnesota School of Public Health. He also has a very long list of honors including, most impressively, a spot on the Food Safety Magazine Editorial Advisory Board.

​In this episode of Food Safety Matters, we speak to Bob [35:25] about:

• The overuse of chemicals and sanitizers and why relying too much on them is a problem
• Faulty ventilation systems, condensation, and leaks—how these problems can lead to the active growth of biofilm
• His plan of action when he sees chemicals being used incorrectly in a food plant
• Integrated cleaning and measurement
• New clean-in-place methods, steam, dry ice, carbon dioxide, hydrogen peroxide, and other green ways to clean
• Why the regulatory community needs to buy into green cleaning methods
• Assessing a cleaning and sanitizing methodologies
• Why more cleaning products need to be evaluated to a standard like NSF International
• Innovating cleaning technologies that have originated in Europe, the Pacific Rim, and elsewhere.
• An example of a time he could not find the source of confirmed Listeria contamination in a ready-to-eat processing facility
• His advice to future sanitarians

Bob Powitz's Articles in Food Safety Magazine
Checking Field Thermometer Accuracy 
Chemical-Free Cleaning: Revisited 
Non-EPA Registered Cleaners and Sanitizers for Use in Food Production Facilities and Retail Food Establishments

Want more from Bob Powitz? Find more of his articles on Food Safety Magazine.

Bob Ferguson's Food Safety Insights [25:19]
Bob joins us to discuss FDA's comments regarding survey results that appeared in the April/May article:
What Industry and FDA are Thinking about FSMA Implementation—Part II

Want more from Bob Ferguson? Find more of his articles and podcast segments.

​News Mentioned in This Episode
VIDEO: Burger King Employee Caught Cleaning Table with Floor Mop [4:50]
FDA Holds First-Ever Public Hearing on Regulating CBD Products ​[9:41]
Kroger and Costco Frozen Berries Recalled a Month After FDA Announces Surprise Testing [21:28]

Rhodes Yepsen joined the Biodegradable Products Institute (BPI) in 2015, where he leads the organization's efforts to promote the value of compostable products. Rhodes is passionate about systems-based solutions, where there is synergy in solving for food waste and packaging simultaneously—addressing climate change, ecosystem impacts, and regenerative agriculture. Previously, he served on the Board of USCC, worked for biopolymer producer Novamont, and was a staff editor and writer at BioCycle magazine.

Brittney Miller is President of Manchester Farms, America's first quail farm. What started over 40 years ago as a backyard hobby has grown into a nationally recognized, family-owned business that produces more than 80,000 quail weekly, raising them responsibly, without antibiotics or hormones, and shipping premium products to chefs, retailers, and home cooks across the country. Brittney's story is about more than farming: it is about stewardship, innovation, and family values. She combines her passion for sustainable agriculture with modern food safety standards. Her SQF Level 2 certified, HACCP-compliant farm sets the benchmark for quality in specialty poultry.

Mindy Brashears, Ph.D. is the USDA's Under Secretary for Food Safety. Dr. Brashears previously served as Under Secretary for Food Safety from 2020–2021, and Deputy Under Secretary in 2019. Dr. Brashears returns to USDA from Texas Tech University, where she was a Paul Whitfield Horn Distinguished Professor of Food Safety and Public Health, the Roth and Letch Family Endowed Chair for Food Safety, and the Director of the International Center for Food Industry Excellence.

Justin Ransom, Ph.D. is Administrator of USDA's Food Safety and Inspection Service (FSIS), where he oversees FSIS' mission to ensure the safety, wholesomeness, and proper labeling of America's commercial supply of meat, poultry, and processed egg products. He leads the agency's modernization efforts, streamlining inspection systems, strengthening public health protections, and advancing science-based policies. 

Elena Medo, M.B.A. is an entrepreneur, researcher, and inventor who has spent nearly 40 years transforming neonatal care through leadership and innovation. She has secured numerous patents, raised over $40 million across four companies, and built a legacy of firsts, including the first commercially available shelf-stable donor breast milk product; the first milk bank owned exclusively by nursing mothers; and the first medical device designed to analyze human milk. Today, as CEO and co-founder of Leonie Health PBC, established in 2023 with her daughter, Adrianne Weir, Elena is developing a revolutionary product that replicates the immune properties of colostrum to protect preterm infants against the three deadliest neonatal infections—necrotizing enterocolitis (NEC), ventilator-associated pneumonia (VAC), and sepsis—which together claim the lives of more than 30,000 hospitalized infants per year.

Alissa Welsher, Ph.D. is a Senior Consultant at Elanco Poultry Food Safety. Dr. Welsher received a bachelor’s degree in biological sciences from the University of Pittsburgh, as well as 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 meat and poultry food safety, and she specializes in integrated pest management (IPM).

Lyle Probst is the CEO of NomadX and an accomplished entrepreneur with more than 25 years of experience in operations, product development, engineering, biodefense, and advanced technology commercialization.