Risky or Not?

A short podcast about everyday risks from germs

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ChatGPT image description: A rustic bar of garlic-themed soap sits on a wooden board, its creamy surface marbled with pale yellow swirls and topped with dried herbs. Garlic bulbs and loose cloves surround the soap alongside parsley, salt crystals, and peppercorns, giving the scene a culinary, farmhouse aesthetic reminiscent of artisanal soap displays.

900. Dried Garlic in Cold Process Soap

March 11, 2026 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of making garlic soap (eventually).

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Whisky - Wikipedia
  • Irish coffee - Wikipedia
  • Chumbawamba - Tubthumping - YouTube
  • Wild Waters Soapery
  • Garlic Soap | Don't Eat It! Soap and Skin Care
  • Garlic-in-oil associated botulism: episode leads to product modification. | AJPH | Vol. 80 Issue 11
  • Garlic-in-oil associated botulism: episode leads to product modification.
  • Conservative prediction of time to Clostridium botulinum toxin formation for use with time-temperature indicators to ensure the safety of foods - PubMed
  • Black Garlic Infused Soap
  • Soap Poisoning | A Christmas Story | TBS - YouTube
  • Garlic soap | Soapmaking Forum - Soap & Candle Forums
March 11, 2026 /Don Schaffner
Garlic, Botulism, Water activity, Soap

ChatGPT image description: A person lowers a vacuum-sealed bag of raw meat seasoned with fresh garlic, herbs, and spices into a stainless-steel sous vide water bath. The clear plastic shows garlic cloves and rosemary against the meat, while a digital immersion circulator maintains a precise low cooking temperature. (Note that ChatGPT picked the temperature with no input from me).

891. Using Fresh Garlic in Sous Vide Cooking

February 18, 2026 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of using fresh garlic in sous vide cooking.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • FDA Fish and Fishery Products Hazards and Controls Guidance Chapter 13
  • Conservative prediction of time to Clostridium botulinum toxin formation for use with time-temperature indicators to ensure the safety of foods - PubMed
  • Parameters Determining Inoculated Pack Challenge Study
  • Why you should never use raw garlic for sous vide cooking
  • Sous Vide Short Ribs Recipe (48 hours to tenderness) - DadCooksDinner
  • Sous Vide Short Ribs (Boneless Beef) - Two Kooks In The Kitchen&
February 18, 2026 /Don Schaffner
Sous vide, Garlic, Botulism

Image from the internet.

842. Freezing Parboiled Potatoes in Large Masses

October 27, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks associated with freezing parboiled potatoes in bulk so they cool slowly.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • Large Outbreak of Botulism: The Hazardous Baked Potato | The Journal of Infectious Diseases | Oxford Academic
  • Freezing New Irish Potatoes - National Center for Home Food Preservation
  • Parboiling - Wikipedia
  • Black Sabbath โ€“ War Pigs Lyrics | Genius Lyrics


October 27, 2025 /Don Schaffner
Potatoes, Botulism, Bacillus cereus

DALLยทE image text: A cheerful Canadian-looking professor in a plaid flannel shirt and beanie gives a thumbs-up inside a refrigerator set at 37ยฐF. In the foreground, a clear container holds golden garlic confit, contrasting with the cold, clean interior. His proud expression highlights satisfaction with his perfectly chilled fridge.

819. Storing Garlic Confit in Ben's Refrigerator for Two Weeks

September 03, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of storing garlic confit at 37 ยฐC (in Ben's refrigerator) for two weeks.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Garlic-in-oil associated botulism: episode leads to product modification. | AJPH | Vol. 80 Issue 11
  • Botulism from Chopped Garlic: Delayed Recognition of a Major Outbreak | Annals of Internal Medicine
  • Outgrowth and Toxin Production by Clostridium botulinum in Bottled Chopped Garlic - ScienceDirect
  • Conservative Prediction of Time to Clostridium botulinum Toxin Formation for Use with Time-Temperature Indicators To Ensure the Safety of Foods - ScienceDirect
  • Current Food Safety Issues of Home-prepared Vegetables and Herbs Stored in Oil
  • Garlic Confit Recipe
  • 78. Garlic Confit โ€” Risky or Not?
  • The Use and Performance of Household Refrigerators: A Review - James - 2017 - Comprehensive Reviews in Food Science and Food Safety - Wiley Online Library
September 03, 2025 /Don Schaffner
Garlic, Botulism, Temperature

The actual photo of the soup in question

800. Linda's Vichyssoise

July 21, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from consuming a very old swollen can of soup linked to a company that caused a botulism outbreak in 1971.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • Marvin Tung Student Case Competition | CIFST
  • Marvin Tung - UBC Library Open Collections
  • Spoilage of Canned Foods - Food Microbiology: Principles into Practice - Wiley Online Library
  • Tainted Soup Laid to Poor Heating - The New York Times
  • Bon Vivant Voluntarily Recalls All Vichyssoise From Dealers - The New York Times
  • Botulism Information | County of Monterey, CA
July 21, 2025 /Don Schaffner
Vichyssoise, Botulism, Swollen can, Canned food

A large, square glass jar of chimichurri sits on a kitchen counter. The contents appear separated and discolored, with dark settling at the bottom and faded herbs suspended in oil. The lid is rusted and stained, suggesting the sauce has been sitting out far too long.

783. Homemade Chimichurri Left at Room Temperature for Months

June 11, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from eating homemade chimichurri left at room temperature for months.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • FPT Nummer et al
  • Kimchi - Wikipedia
  • Chimichanga - Wikipedia
  • Modelling the pH of mayonnaise by the ratio of egg to vinegar - ScienceDirect
June 11, 2025 /Don Schaffner
Chimichurri, Botulism, Garlic in oil

Actual image from Facebook.

777. Eating Deviled Eggs Made From Home-Canned, Split Open Hard-Boiled Eggs

May 28, 2025 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from eating deviled eggs made from home-canned, split open hard-boiled eggs,

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • Canning Rebels | Hard boiled egg experiment | Facebook
  • Text of "GREEN EGGS AND HAM" (by Doctor Seuss)
  • Green Eggs and Ham - Google Books
  • Food Safety Talk 319: I'm Feeling Botchy Today โ€” Food Safety Talk
  • Pickled Eggs - National Center for Home Food Preservation
  • Why do Eggs Turn Green When Cooked? | Incredible Egg
  • Full article: Investigation of a type C/D botulism outbreak in free-range laying hens in France
  • Challenge studies with Listeria monocytogenes and proteolytic Clostridium botulinum in hard-boiled eggs packaged under modified atmospheres - ScienceDirect
  • Pressure Canning Whole Eggs for the pantry! *NOT a G0v+ approved method #storingeggs #preservingeggs - YouTube
  • Foodborne Botulism From Eating Home-Pickled Eggs --- Illinois, 1997
  • Freezing Eggs - National Center for Home Food Preservation
May 28, 2025 /Don Schaffner
Eggs, Home canning, Botulism

DALLยทE image text: A square photo of a glass jar, half-filled with syrupy peaches. Several peach slices are covered in thick, fuzzy mold, appearing green and white. The jar has a weathered metal lid, and the syrup inside is cloudy. The scene is softly lit against a plain, neutral background.

765. Big Open Spoiled Jar of Canned Peaches at Room Temperature

April 30, 2025 by Don Schaffner

Dr. Don and Professor Ben revisit episode 759, and talk about the risks of eating from big open spoiled jar of canned peaches at room temperature.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • 759. Big Open Jar of Canned Peaches at Room Temperature โ€” Risky or Not?
  • Further Studies on Development of Clostridium Botulinum in Refrigerated Foods 1 - Tanner - 1940 - Journal of Food Science - Wiley Online Library
  • Further Studies on Development of Clostridium botulinum in Refrigerated Foods - abstract
  • Growth and Toxin Production by Clostridium botulinum in Sauteed Onions - ScienceDirect
  • Journal of Food Science - Wikipedia
April 30, 2025 /Don Schaffner
Botulism, Peaches, Spoilage, Fungus, pH

DALLยทE - A big block of cheddar cheese without any holes, sitting in a tightly sealed vacuum packager. The cheese looks slightly warm and sweaty...

644. Vacuum Packed Cheddar at Room Temperature for 24 hours

July 22, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from vacuum packaged cheddar cheese stored for 24 hours at room temperature.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Merch โ€” Risky or Not?
  • Urban Dictionary: I Do Declare
  • CDPH Testing Confirms Botulism Linked to Nacho Cheese Sauce
  • Consensus categorization of cheese based on water activity and pHโ€”A rational approach to systemizing cheese diversity - ScienceDirect
  • Evaluation of Factors Involved in Antibotulinal Properties of Pasteurized Process Cheese Spreads - ScienceDirect
  • Inhibition of Clostridium botulinum in Model Reduced-Sodium Pasteurized Prepared Cheese Products - ScienceDirect
  • Growth of Proteolytic Clostridium botulinum in Process Cheese Products: II. Predictive Modeling - ScienceDirect
  • Growth of Listeria monocytogenes, Salmonella spp., Escherichia coli O157:H7, and Staphylococcus aureus on Cheese during Extended Storage at 25ยฐC
  • Nacho cheese botulism kills 1 person and puts 9 in the hospital | CNN
  • Designating certain cheeses non-time/temperature control for safety foods | Council III | 2014 Scribe Packet | Conference for Food Protection
  • Foodborne botulism: A brief review of cases transmitted by cheese products (Review) - PubMed
July 22, 2024 /Don Schaffner
Cheese, Vacuum packaging, Botulism

Nateโ€™s actual pan

639. Nate's Meat Diet Cast Iron Pan Grease

July 10, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of reusing grease after cooking in a cast iron pan.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Merch โ€” Risky or Not?
  • Foodborne Botulism -- Illinois
  • Heat Inactivation Rates of Botulinum Toxins a, B, E and F in Some Foods and Buffers - Woodburn - 1979 - Journal of Food Science - Wiley Online Library
  • The Wire: to evacuate - YouTube
July 10, 2024 /Don Schaffner
Grease, Cast iron, Botulism

DALLยทE - A dusty jar of pickled quail eggs sits on a shelf in a dimly lit country store. The jar is old and unlabeled. Behind it, slightly out of focus, is another jar with a skull and crossbones.

610. Unrefrigerated Unlabeled Pickled Quail Eggs From a Country Store

May 03, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from eating unrefrigerated unlabeled pickled quail eggs from a country store.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • Amazon.com : Buc-ee's Pickled Quail Eggs 16oz : Grocery & Gourmet Food
  • Buc-ee's in St. Augustine: Quail eggs, kolaches and other unusual eats
  • Physical and Microbiological Characteristics of Pickled Eggs from Physical and Microbiological Characteristics of Pickled Eggs from Japanese Quail (Coturnix coturnix japonica) of the Pharaoh Japanese Quail (Coturnix coturnix japonica) of the Pharaoh Variety
  • Pickled Eggs - National Center for Home Food Preservation
  • Foodborne Botulism From Eating Home-Pickled Eggs --- Illinois, 1997
  • Southern Coast Enterprises - 547377 - 05/25/2018 | FDA
May 03, 2024 /Don Schaffner
Eggs, Pickled foods, Botulism

DALLยทE Image of boiled Yukon gold potatoes in a clear glass bowl, teeming with colorful, cartoon-style bacteria.

590. Kejni's Extra-Crispy Roast Potato Recipe

March 18, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of leaving boiled chunks of Yukon gold potatoes at room temperature overnight.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • J. Kenji Lรณpez-Alt
  • James Neal (ice hockey) - Wikipedia
  • Last night I followed the beginning of my extra-crispy roast potato recipe (I boiled chunks of Yukon golds in water with salt and a pinchโ€ฆ | Instagram
  • Large Outbreak of Botulism: The Hazardous Baked Potato | The Journal of Infectious Diseases | Oxford Academic
  • Restaurant-Associated Type a Botulism: Transmission by Potato Salad | American Journal of Epidemiology | Oxford Academic
  • Combined effect of water activity and pH on inhibition of toxin production by Clostridium botulinum in cooked, vacuum-packed potatoes | Applied and Environmental Microbiology
  • Presence and Significance of Bacillus cereus in Dehydrated Potato Products - ScienceDirect
  • Influence of temperature shifts on survival, growth, and toxin production by psychrotrophic and mesophilic strains of Bacillus cereus in potatoes and chicken gravy - ScienceDirect
  • Presence and Growth of Bacillus cereus in Dehydrated Potato Flakes and Hot-Held, Ready-to-Eat Potato Products Purchased in New Zealand - ScienceDirect
  • 154. Michael Scott Bacon Method โ€” Risky or Not?
March 18, 2024 /Don Schaffner
Potatoes, Botulism, Bacillus cereus

Here's the image of a swollen can of Surstrรถmming, showcasing the high pressure inside due to the fermentation process. The can is set on a rustic wooden table, featuring a label with classic Swedish design elements.

588. Swollen Can of Surstrรถmming

March 13, 2024 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of eating surstrรถmming from a swollen can.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Surstrรถmming - Wikipedia
  • Fermented and ripened fish products in the northern European countries - ScienceDirect
  • Discovering microbiota and volatile compounds of surstrรถmming, the traditional Swedish sour herring - ScienceDirect
  • Safety of Fermented Fish Products - ScienceDirect
  • Fermented and ripened fish products in the northern European countries - ScienceDirect
  • Strictly anaerobic halophiles isolated from canned Swedish fermented herrings (Surstrรถmming) - ScienceDirect
  • Swollen can of surstrรถmming - SURSTRร–MMING - THE OFFICIAL STORE
March 13, 2024 /Don Schaffner
Fish, Botulism, Surstrรถmming

DALLยทE - a slightly dented can of tunafish

552. Tuna From a Can Freshly Dented at Home

December 20, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of eating tuna from a can just dented at home.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • The Ultimate Podcasting Hack: Record in your closet and use two pillows | by Saron Yitbarek | Medium
  • Double seaming process guide - Industrial Physics
  • Is it safe to use food from dented cans?
  • Better Process Control School - Consumer Brands Association
  • food safety - What do to with cans that you just dented? - Seasoned Advice
December 20, 2023 /Don Schaffner
Canned food, Botulism

DALLยทE - a toddler stepping on a trash can pedal to open the trash can and sticking their head in the trash.

544. Toddler Getting Into Kitchen Trash

December 01, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks a toddler getting into kitchen trash.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Norovirus Outbreak Related to Contaminated Surfaces | The Journal of Infectious Diseases | Oxford Academic
  • Full article: Occurrence of bacteria and biochemical markers on public surfaces
December 01, 2023 /Don Schaffner
Trash can, Botulism, Listeria

527. Hawaiian Chili Pepper Water

October 23, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from Hawaiian chili pepper water.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Who Needs Hot Sauce When You Have Hawaiian Chile Pepper Water?
  • Hawaiian Chili Pepper Water Recipe - Chili Pepper Madness
  • Authentic Hawaiian Chili Pepper Water Recipe โ€” Snack Hawaii
  • Accompaniments: Chutneys, Relishes, Pickles, Sambals, and Preserves - Kusuma Cooray - Google Books
October 23, 2023 /Don Schaffner
Chili pepper, Botulism

DALLยทE - Open half empty can of chicken noodle soup sitting on a countertop. Note that DALLยทE totally invented the spoon, which was not part of the prompt.

498. Room Temperature Canned Chicken Noodle Soup

August 16, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks of consuming canned chicken noodle soup without heating.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Bon Vivant Voluntarily Recalls All Vichyssoise From Dealers - The New York Times
  • Acidified and Low-Acid Food Regulatory Requirements
  • Better Process Control School - Consumer Brands Association
  • Botulism Associated with Commercially Canned Chili Sauce --- Texas and Indiana, July 2007
  • Marie Antoinette - Wikipedia
August 16, 2023 /Don Schaffner
Low acid canned foods, Botulism, Soup

DALLยทE - a little Baked Potato sitting in a white slow cooker on a countertop in a kitchen

492. Slow Cooker Baked Potatoes With No Water

August 02, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from making a baked potato in a slow cooker without added water.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Carnac the Magnificent - Wikipedia
  • Food Talk, UGA SNAP-Ed on Twitter: "Easily make slow-cooker baked potatoes, no water needed. 1. clean potato, 2. Season with olive oil, salt, and pepper, 3. Place potatoes on LOW for 6-8 hours or on HIGH for 4 hours. Add chives and greek yogurt (a low-fat, high-protein substitute for sour cream). https://t.co/fVBGUFf4dM" / X
  • Slow cookers and food safety | UMN Extension
  • Counting-out game - Wikipedia
August 02, 2023 /Don Schaffner
Potatoes, Slow cooker, Botulism

DALLยทE - a worried pig standing next to a grill with three potatoes wrapped in aluminum foil

491. Foil Wrapped Smoked Potatoes

July 31, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks from cooking potatoes cooked in a smoker.

Dr. Don - not risky ๐Ÿ‘๐Ÿผ
Professor Ben - not risky ๐Ÿ‘๐Ÿผ

  • Tastee Sub Shop ยท Apple Maps
  • Tastee Freez - The Original Soft Serve Ice Cream
  • What was the Double E Warren Zevon referred to?
  • Large Outbreak of Botulism: The Hazardous Baked Potato | The Journal of Infectious Diseases | Oxford Academic
  • Restaurant-Associated Type a Botulism: Transmission by Potato Salad | American Journal of Epidemiology | Oxford Academic
  • Conservative prediction of time to Clostridium botulinum toxin formation for use with time-temperature indicators to ensure the safety of foods - PubMed
  • Sleater-Kinney
  • Parameters Determining Inoculated Pack Challenge Study
July 31, 2023 /Don Schaffner
Potatoes, Botulism, Smoker

469. Marinated Feta in a Jar

June 09, 2023 by Don Schaffner

Dr. Don and Professor Ben talk about the risks consuming marinated feta (with garlic) in oil in a jar bought at a farmers market.

Dr. Don - risky โ˜ฃ๏ธ
Professor Ben - risky โ˜ฃ๏ธ

  • Certified Food Scientist | CIFST
  • Overview of Food Ingredients, Additives & Colors | FDA
  • FRESHFARM on Instagram: โ€œIt's time to praise the CHEESE ๐Ÿง€ January 20 is NATIONAL CHEESE LOVERS DAY! Did you know that you could stock up on cheese at yourโ€ฆโ€
  • Amazon.com: Customer Questions & Answers
  • Amazon.com: Danish Feta In Oil and Spices (Apetina) 9.7 oz (275g) : Grocery & Gourmet Food
  • Danish Feta with Olives In Oil and Spices (Apetina) 3.1 lb โ€“ Parthenon Foods
  • Arla Apetina Feta Cheese in Oil with Herbs & Spices, 9.7 oz - Kroger
June 09, 2023 /Don Schaffner
Feta, Garlic in oil, Botulism
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