Risky or Not?

A short podcast about everyday risks from germs

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This image features a half-empty, transparent container of guacamole placed on a kitchen counter. The guacamole itself is textured, displaying distinct chunks of small diced tomatoes, onions, and cilantro, which add a colorful and fresh appearance to the green base. The guacamole's surface has ridges and swirls, showing evidence of recent scooping.

The kitchen is depicted in the middle of the night, with dim, warm lighting emanating from an overhead source, casting gentle, elongated shadows on the counter. The counter itself is subtly textured, resembling granite or a similar polished stone surface with small, faint speckles.

The container is positioned slightly askew, hinting at casual use. Reflections on the container's plastic sides indicate the soft glow from the kitchen's light, enhancing the late-night ambiance. Overall, the scene conveys a feeling of nighttime snacking, with its quiet and tranquil setting.

692. Guacamole Left Out Overnight

November 11, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of eating guacamole left out overnight.

Dr. Don - risky ☣️
Professor Ben - risky ☣️

  • Mild Guacamole - Yucatan Guacamole
  • Yucatan Authentic Guacamole 16 oz, 16 oz - Kroger
  • Avocados - Food Source Information
  • Behavior of Listeria monocytogenes in Avocado Pulp and Processed Guacamole - ScienceDirect
  • Effect of storage temperature and time on the behavior of Salmonella, Listeria monocytogenes, and background microbiota on whole fresh avocados (Persea americana var Hass) - ScienceDirect
  • Evaluation of Avocados as a Possible Source of Listeria monocytogenes Infections, United States, 2016 to 2019 - ScienceDirect
  • Growth Kinetics of Listeria monocytogenes in Cut Produce - ScienceDirect


November 11, 2024 /Don Schaffner
Guacamole, Avocado, Time temperature control for safety food

DALL·E - A realistic image of a cut avocado wrapped in plastic wrap, sitting on a kitchen counter. The kitchen counter is dimly lit, indicating it's the middle of the night.

665. Leaving a Cut Unripe Avocado at Room Temperature for a Day

September 09, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from leaving a cut unripe avocado at room temperature for a day.

Dr. Don - risky ☣️
Professor Ben - risky ☣️

  • Christopher Kimball’s Milk Street | Recipes, TV and Cooking Tips
  • America's Test Kitchen: Recipes & Reviews You Can Trust | Stream Every Episode | America’s Test Kitchen
  • Richard Kimble | The Fugitive Wiki | Fandom
  • Salmonella, Listeria monocytogenes, and Indicator Microorganisms on Hass Avocados Sold at Retail Markets in Guadalajara, Mexico - ScienceDirect
  • Behaviors of Salmonella enterica serovar Typhimurium and Listeria monocytogenes on whole avocado during storage at 21 or 7°C and their reduction by aqueous chlorine dioxide and peroxyacetic acid - ScienceDirect
  • Effect of storage temperature and time on the behavior of Salmonella, Listeria monocytogenes, and background microbiota on whole fresh avocados (Persea americana var Hass) - ScienceDirect
  • Survival of Salmonella spp., Escherichia coli O157:H7, and Listeria monocytogenes in Ready-to-Eat “Guacamole”: Role of Added Antimicrobials - PMC
  • Quality variables of “Hass” avocado stored in modified atmosphere packaging
September 09, 2024 /Don Schaffner
Avocado, Salmonella, Listeria, Time temperature control for safety food

DALL·E - Avocados in a pitcher of water in a refrigerator

505. Avocados Stored in Water in the Refrigerator

September 01, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of storing avocados in water in your refrigerator.

Dr. Don - not risky 👍🏼
Professor Ben - risky ☣️ (updated)

  • Guacamole - Wikipedia
  • Research Triangle Park | Where People + Ideas Converge
  • neil chazin on X: "@bugcounter @benjaminchapman is this actually risky at fridge temps (assuming your fridge is set properly)? https://t.co/J0dkvx3JnG" / X
  • Avocado in Water Storage ‘Hack’ Isn’t Safe. Here’s What to Do Instead
  • Internalization of Listeria monocytogenes in Whole Avocado - ScienceDirect
  • Behavior of Listeria monocytogenes in Avocado Pulp and Processed Guacamole - ScienceDirect
  • Evaluation of Avocados as a Possible Source of Listeria monocytogenes Infections, United States, 2016 to 2019 - ScienceDirect
  • Listeria monocytogenes Dose Response Revisited—Incorporating Adjustments for Variability in Strain Virulence and Host Susceptibility - Pouillot* - 2015 - Risk Analysis - Wiley Online Library
  • Ice Ice Baby - Wikipedia
September 01, 2023 /Don Schaffner
Avocado, Listeria monocytogenes

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