Risky or Not?

A short podcast about everyday risks from germs

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ChatGPT image description: A food microbiologist in a lab coat, gloves, and mask carefully examines a caramel apple removed from a mailed package. The apple is wrapped in plastic and studded with nuts. The scientist’s furrowed brow and cautious posture convey concern about the apple’s safety.

895. Caramel Apple That's Been Shipped Priority Mail

February 27, 2026 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from eating a candied or caramel apple that's been shipped priority mail.

Dr. Don - risky ☣️
Professor Ben - risky ☣️

  • Growth of Listeria monocytogenes within a Caramel-Coated Apple Microenvironment | mBio
  • Fate of Listeria monocytogenes in Fresh Apples and Caramel Apples - ScienceDirect
  • Multistate Outbreak of Listeriosis Linked to Commercially Produced, Prepackaged Caramel Apples Made from Bidart Bros. Apples | Listeria | CDC
  • Listeria and candied and caramel-coated apples | UMN Extension
  • Gourmet Candy Apples | Kandy Apples by K | Raleigh
February 27, 2026 /Don Schaffner
Apple, Caramel, Listeria

ChatGPT image description: A square close-up shows an opened metal can of caramel sauce left on a kitchen countertop. Thick amber caramel overflows the rim, dripping down the sides and pooling on the surface below. A spoon coated in caramel rests nearby, emphasizing the sticky, glossy texture.

868. Homemade Caramel Sauce Left Out Over Night

December 26, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from leaving homemade caramel sauce out over night.

Dr. Don - not risky 👍🏼
Professor Ben - not risky 👍🏼

  • David Mitchell (comedian) - Wikipedia
  • Great White North - YouTube
  • Mayor Clint Eastwood | Carmel-by-the-Sea, California
  • Sweetened Condensed Milk Caramel Recipe
  • Shelf stable caramel sauce : r/foodscience
  • Water activity and its relevance
  • Hit Somebody! (The Hockey Song) - YouTube
December 26, 2025 /Don Schaffner
Caramel, Time temperature control for safety food

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