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Home » Multimedia » Podcasts » Food Safety Matters » Ep. 35. John Butts: Listeria--Seek and Destroy

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.

New episodes are posted twice a month.

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1:01:12
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Ep. 35. John Butts: Listeria--Seek and Destroy

John Butts is the vice president of research at Land O’Frost. He first joined the company in 1974. His focus there includes the application of scientific principles and quality management technology to develop sanitation process control methods and procedures. 

John is mostly known for the development of the “seek and destroy” process controls for Listeria which has been adopted throughout the food industry. He is a leading expert on sanitary design and food safety culture and has given over 100 presentations including the North American Meat Institute Listeria Intervention and Control workshops.

John is also the founder and president of FoodSafetyByDesign LLC, a private consulting firm he established in 2010. There, he aims to help producers of high-risk products learn how to prevent and manage food safety risks. Listeners can reach him directly by emailing him at foodsafetybydesign@gmail.com.

Finally, John is a longtime member of the Food Safety Magazine Editorial Advisory Board, along with having written numerous articles for the publication. He received the FSM Distinguished Service Award in 2006. 

In this episode of Food Safety Matters, we speak to John Butts about: 

  • The many reasons why Listeria's presence in meat has diminished over the years
  • The importance of physical barriers and hygienic zoning within a food facility
  • Why Listeria is so problematic in both wet and dry environments
  • The proper processes of cleaning, sanitizing, disassembling equipment, and surface sampling
  • Problems associated with cleaning and disassembling equipment
  • Where Listeria actually comes from, and where it's commonly found
  • The definition of a harborage site
  • Unique ways to sanitize food facility equipment
  • The importance of having a multidisciplinary team in place
  • Sanitary design, sampling, and how keeping up with these tasks can save money
  • The three fundamental types of sampling

Food Safety Magazine articles written by (or featuring) John Butts:
Land O’Frost: Breaking Ground in Sanitary Facility Design

The Supply Chain and Food Safety Culture: Processing

Seek & Destroy: Identifying and Controlling Listeria monocytogenes Growth Niches

The Journey to a State of Control
 

Related Content:
2014 Sanitary Equipment Design Taskforce (checklist and glossary)
YouTube Video: Weber--Steaming a Ready-to-Eat Slicer 
Blockchain Explained—Reuters infographic

News Mentioned in This Episode:
Walmart's Blockchain Food Traceability Initiative 
FDA Recall/Retail Disclosure Draft Guidance (includes instructions to submit public comments)
Congresswoman DeLauro Questions Ground Beef Recall Timeline

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01-04-2021
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October 23, 2026
1:12:14
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Ep. 228. Adam Holt, BCE: Smarter Pest Management, From IPM to AI

Adam Holt, BCE is a Board Certified Entomologist with decades of hands-on experience. He is the Founder and Principal Consultant at NameDatBug, a pest control consulting firm grounded in real-world success across every level of the pest control industry. Adam has held executive roles at several PCT Top 100 companies and brings unmatched industry expertise to every engagement. He holds a patent for an electronic rodent monitoring device, has worked in pest control software development, and has collaborated closely with manufacturers and distributors on both product design and market strategy.

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October 19, 2026
34:35
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Orkin: Beyond Pest Control: How Pest Prevention Strengthens Modern Food Safety Systems

Shannon Sked, Ph.D., BCE is an entomologist and the National Technical Director at Orkin. He received a B.S. degree from Rutgers University, an M.S. degree in Entomology from Penn State University, and a Ph.D. from Rutgers' Urban IPM Entomology lab. Dr. Sked's research focuses on distribution and temporal modeling of insect and rodent communities in order to design effective pest management programs. He began his career as a Navy Entomologist overseeing structural pests, specifically focusing on pests related to imports, exports, and within the logistics chain for Navy operations. He had the unique opportunity to practice applied entomology and invasive species management in the Middle East, North Africa, the Caribbean, and the eastern shore of the U.S.  

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October 12, 2026
1:07:19
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Ep. 227. Michael Ciepiela: Gap Assessments, Audit Readiness, and Continuous Improvement

Michael Ciepiela is Vice President of Quality and Continuous Improvement at Southern Specialties. He brings over a decade of diverse experience in the food and beverage industry, along with experience in the pharmaceutical sector, specializing in quality assurance and food safety. Throughout his career, he has excelled in multi-site implementation and adherence to GFSI requirements and regulations. Michael has also been instrumental in promoting and educating Lean Six Sigma principles in fast-paced, cross-departmental settings. As a recognized thought leader, he frequently speaks at national conferences. He is also a senior member of the American Society for Quality (ASQ). Michael holds a bachelor's degree in Biology from Alfred University and a Six Sigma Master Black Belt from Villanova University.

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September 25, 2026
33:36
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Brashears and Rottenberg: Consumer Education as a Food Safety Essential

Mindy Brashears, Ph.D. is the U.S. Department of Agriculture's (USDA's) Under Secretary for Food Safety. She 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.

Carmen Rottenberg is a leader in food safety and agriculture policy, serving as Managing Director of Groundswell Strategy a Board Member for the Partnership for Food Safety Education. Prior to launching Groundswell Strategy, Carmen served as Administrator of USDA's Food Safety and Inspection Service. Over her 13 years with USDA, Carmen held several leadership roles and was credited with spearheading key agency initiatives including modernizing food safety inspection systems and establishing and updating pathogen performance standards. Carmen has extensive experience achieving collaboration across federal, state, and municipal agencies including with the Food and Drug Administration (FDA), the Occupational Safety and Health Administration (OSHA), with state departments of agriculture and across USDA's 29 agencies and offices.

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September 21, 2026
1:12:16
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Ep. 226: Jules Shepard: From Celiac Disease Advocacy to Gluten-Free Food Manufacturing

Jules Shepard is the CEO and Founder of gfJules, the number-one‑voted gluten‑free flour and baking mixes company in the United States. A recognized gluten‑free baking expert, she has authored three award‑winning books in the field and recently released a new cookbook dedicated to gluten‑free bread. A long‑standing and respected leader in the gluten‑free and food allergy community, Jules championed the gluten‑free food labeling movement in 2011. Her tireless advocacy, education, and lobbying efforts culminated in her receiving the first‑ever "Gluten Free Person of the Decade" award in 2020.

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September 8, 2026
1:24:32
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Ep. 225. Yasuda, Boeffard, Boyce: The Stop Alliance Mentorship Program: Lessons Learned and Collaborations Shared

Lily Yasuda is the Deputy Director of the Alliance to Stop Foodborne Illness, where she leads national initiatives that bring together food industry leaders to strengthen food safety culture and support continuous learning across the sector.

Athenais Boeffard is a collaborative and people-focused production leader with over a decade of experience in food manufacturing and food safety. 

John Boyce has over 45 years of experience in various aspects of food production, food safety, quality assurance, sanitation, training, and auditing. 

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