McDonald’s onion supplier ignored sanitation protocols

Taylor Farms Colorado, Inc., a supplier of slivered onions to McDonald’s franchises in a dozen states, ignored its own sanitation and food safety protocols, according to an inspection report from the FDA. The redacted report (FDA Form 483) was made available to the public on the Marler Blog site.

The slivered yellow onions were implicated in an outbreak of E. coli O157:H7 infections that sickened 104 people; 34 of the victims were hospitalized and one person died.

Following a traceback investigation, the FDA conducted an intensive inspection of the Taylor Farms production facility and found multiple instances of inadequate or improper cleaning and sanitation procedures, some in contravention of the company’s own written directives.

The slivered onions processed in the Colorado facility were exposed to the environment from the initial peeling step all the way to the finished packaging step. These ready-to-eat items do not undergo a lethal treatment step for pathogens. They are used as a raw “topper” in McDonald’s Quarter Pounder hamburgers.

The company’s food safety plan listed Salmonella and Listeria as hazards that require a sanitation control. Yet, inspectors observed several areas in the production plant that could support pathogen growth on food contact surfaces, and the ambient temperature inside the production facility was favorable to the growth of pathogens such as Listeria.

For example, pooling water was present in the vicinity of a cutting area, and the area tested positive for Listeria, as did a number of non-food contact surface areas in the production rooms.

Although the company’s Environmental Monitoring plan specified corrective actions when an environmental pathogen was detected, monitoring records for 2023 and 2024 indicated that these requirements were not consistently followed. In addition, the verification methods used were not designed to determine the types of pathogens found on a surface.

Cleaning procedures also were unreliable. FDA investigators observed apparent biofilm and large amounts of food debris on numerous equipment surfaces AFTER the post-operation clean-ups were completed. Surfaces that were not visually clean and should have been marked as “Fail” during pre-operation inspection were marked as “Pass” instead.

Other deficiencies included:

  • Torn and damaged conveyor belts
  • Trapped water and food debris present in pitted areas of food contact surfaces
  • Food particles in crevices of the welds on production lines
  • Sanitizing disposable gloves rather than removing and replacing them
  • Missing cleanliness check documents
  • Improper storage of food contact utensils (eg., knives)
  • Incorrect concentration level for sanitizing solution
  • Sanitized surfaces not allowed to air-dry before put into use.

Taylor Farms’ Colorado facility has been inspected on four previous occasions, most recently in 2020.

The facility passed inspection each time, with no corrective actions indicated, according to information available on the FDA Inspection Database.

Either the previous inspections were superficial, or else something changed between 2020 and 2024.

After the infamous “Jack In The Box” E. coli O157:H7 outbreak in 1992-1993, Foodmaker Inc. (the restaurant chain’s parent company) overhauled its Quality Assurance programs and implemented more stringent requirements of its suppliers.

A company the size of McDonald’s has enormous clout with prospective suppliers. If it were to insist on adherence to effective cleaning, sanitation and quality assurance protocols, and were to enforce these requirements by reserving the right to conduct unannounced audits of its suppliers’ facilities, the quality and safety of McDonald’s own products would be enhanced.

The FDA’s food safety program is overworked and underfunded.

FDA is spending a large chunk of its resources (personnel, lab facilities, etc) in tracing the sources foodborne outbreaks and putting out fires.

Year by year, the number of production facilities the FDA oversees has grown, and the agency’s budget has not kept pace.

And with a new administration about to take office, chances are the situation will only get worse.


“Reads like a true crime novel” – Food Safety News

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Recalls and Alerts: January 7–10, 2025

Here is today’s list of food safety recalls, product withdrawals, allergy alerts and miscellaneous compliance issues. The live links will take you directly to the official recall notices and company news releases that contain detailed information for each recall and alert.

If you would like to receive automatic email alerts for all new articles posted on eFoodAlert, please submit your request using the sidebar link.



“A complete and compelling account of the hidden and not-so-hidden ways the food we give our beloved pets can be contaminated.” JoNel Aleccia, Health Reporter, Food & Nutrition, The Associated Press.

“An invaluable resource for busy pet owners” – Food Safety News

Available from all major on-line retailers, including:


Outbreak/Illness Investigations

USA (Final Update): CDC reports that cucumbers grown in Sonora, Mexico by Agrotato, S.A. de C.V. and imported into the United States are responsible for 113 confirmed cases of Salmonella Typhimurium infections, including 28 hospitalizations. Illnesses were confirmed in 23 states. According to the CDC, this outbreak is now over.

United States

Allergy Alert: The Mochi Ice Cream Company LLC recalls Peach Mango Sorbet (7.5 oz; Lots  337-24 & 341-24) due to undeclared egg.

Allergy Alert: Dierbergs recalls Premium Home-Style Mashed Potatoes (16 oz; Label ID 92; Sell by January 09, 2025) due to undeclared wheat.

Public Health Alert: FSIS issues Public Health Alert for bettergoods TRADITIONALLY CRAFTED Chicken Curry Empanadas (9.6 oz; Best by 05/21/26 &  05/22/26; Est P33967) due to undeclared milk.

Canada

No Alerts

United Kingdom and Ireland

Allergy Alert (Ireland): FSAI advises consumers that SuperValu Signature Tastes Greek Feta & Pasta Salad (240g; Use by 15/01/2025 and 17/01/2025) may contain undeclared egg and mustard.

Allergy Alert Update (UK): TJX Europe recalls several Sultans Turkish Delight products due to undeclared milk. Please refer to the recall notice for an updated list of affected products.

Hong Kong and Singapore

No Alerts

Australia and New Zealand

Allergy Alert (Australia): The Standard Market Company recalls Various Frozen Pie Products due to undeclared egg. Please refer to the recall notice for a complete list of affected products.

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Bird flu and household pets

Highly pathogenic avian influenze (HPAI), more commonly known as bird flu, not only infects poultry flocks (backyard and commercial) and dairy herds.

The influenza A H5N1 virus (the current prevalent variety of bird flu virus in circulation) has been found in a range of wildlife species in addition to wild birds. From deer mice to dolphins, from cougars to coyotes, no mammalian species is completely immune from infection.

In recent weeks, it has become clear that household pets also are at risk.

In April 2023, a domestic dog tested postive in Canada for the H5N1 virus after chewing on a wild goose. The dog died a few days later.

Household pets that spend unsupervised time outdoors are at risk of coming into contact with infected wildlife, such as a sick or dead bird or rodent.

The risk is increased if the household also maintains a backyard poultry flock.

Caged birds may also be at risk, if they are allowed to fly free from time to time and come into contact with a wild bird.

Yet, even pets that are kept largely indoors and are under supervision while outside can become infected with the bird flu virus.

Cats are more susceptible to bird flu infections than dogs. There have been several reports of barn cats and feral cats becoming as a result of exposure to H5N1 on dairy farms.

Domestic indoor cats also are at risk.

Recently, Food Safety News reported on a case involving three cats in one household that were fed raw milk from the California company, Raw Farm LLC in late 2024. Two of the cats died and a third became seriously ill. A fourth cat in the household, which did not drink any of the raw milk, remained healthy.

On December 3, 2024, Raw Farm LLC recalled all raw milk and cream products after the California Department of Food and Agriculture found multiple instances of H5N1 virus in the company’s raw milk.

The dairy’s owner, Mark McAfee, denied that his milk was the source of the virus that killed the cats, claiming that the H5N1 virus cannot survive for long periods in cold milk. However, a recent study funded by the National Institutes of Health determined that the H5N1 virus remained viable in refrigerated raw milk for five weeks with only a minor decline in virus levels.

The H5N1 virus can also be present in raw pet food.

On December 24, 2024, Northwest Naturals recalled one batch of Northwest Naturals brand 2lb Feline Turkey Recipe raw frozen pet food after it tested positive for highly pathogenic avian influenza (HPAI) virus. Testing was initiated after a cat that had been fed the raw pet food developed bird flu and died.

On December 31, 2024, the Los Angeles County Department of Health advised the public not to feed Monarch Raw Pet Food to their pets after the H5N1 virus was detected in a sample. Again, testing was initiated after a cat that had been fed the product became ill and was confirmed to be infected with the virus.

On January 3, 2025, Monarch Raw Pet Food Company issued a statement claiming that there was no scientific evidence to substantiate the link between their pet food and the cat illness.

eFoodAlert reached out to the FDA Center for Veterinary Medicine (CVM) and received the following statement from a CVM spokesperson:

The FDA is tracking cases of Highly Pathogenic Avian Influenza in domestic and wild cats in California, Colorado, Oregon and Washington State that appear to be linked to eating contaminated food products. No human illness has been reported from handling these foods or through contact between people and the animals.

Some of the animals were fed raw poultry or raw poultry pet food, while others ate unpasteurized milk. The FDA is working with state and federal counterparts to gather more specific information about what animals ate which foods and when, and to coordinate test results of the animals and the suspect foods.

The FDA and state authorities routinely work together to surveil the animal food supply, including pet food. This includes conducting risk-based facility inspections and collecting animal food samples to help ensure safety.  The FDA may also collect samples “for cause,” such as when a pet food is suspected of being associated with human or animal illness. State authorities also regularly collect samples from retail settings and share test results with the agency. HPAI is an emerging contaminant in animal food. Analytical capacity is limited and pathogens like H5N1 can be difficult to detect because they might not be evenly distributed throughout the product (increasing the possibility of a false negative result).

Part of a pet food manufacturer’s responsibility is to bring a safe, wholesome product to market that is not adulterated under the Federal Food, Drug, and Cosmetic Act. As we learn more about the transmission of H5N1 in animal food, there are several practices that the FDA is encouraging pet food manufacturers and others in the supply chain to use to prevent HPAI transmission through animal food. These practices could include seeking poultry from flocks that are documented as having remained healthy throughout processing, and taking processing steps, such as heat treatment, that are capable of inactivating viruses and other hazards. 

All recent detections of H5N1 in cats had these things in common: the infected cats ate wild birds, unpasteurized milk, raw poultry, and/or raw poultry pet food. We know that cats are particularly sensitive to HPAI, and that very young, very old or immune-compromised animals are at greater risk of infection. The FDA continues to recommend that consumers avoid feeding pets any products that are recalled or from affected farms if those products have not been thoroughly cooked or pasteurized to inactivate the virus. If consumers are unsure of the origin of those products, it’s safest to follow the USDA guidelines for handling and thorough cooking before feeding. Animals should also be kept from hunting and eating wild birds.

Symptoms of a bird flu infection vary with the species. Here is a short list of what to watch for. Contact your veterinarian if you suspect one of your pets may be infected with bird flu. If you or a household member begins to exhibit symptoms associated with the bird flu virus, contact your healthcare provider.

  • Sudden death with no prior signs
  • Low energy or appetite
  • Purple discoloration or swelling of various body parts
  • Reduced egg production, or soft-shelled/misshapen eggs
  • Nasal discharge, coughing, or sneezing
  • Lack of coordination
  • Diarrhea
  • Fever
  • Lethargy
  • Low appetite
  • Reddened or inflamed eyes
  • Discharge from the eyes and nose
  • Difficulty breathing
  • Neurologic signs, like tremors, seizures, incoordination, or blindness

In humans

  • Eye redness or discharge
  • Cough
  • Sore throat
  • runny or stuffy nose
  • Diarrhea
  • Vomiting
  • muscle or body aches
  • Headaches
  • Fatigue
  • trouble breathing
  • Fever

“Reads like a true crime novel” – Food Safety News

Interested in learning more about food safety and the history of foodborne disease outbreaks and investigations?

Click on the link to listen to a short excerpt, then follow the buy links to add a digital, print or audio copy to your personal library.

Chapter 6. Birth of a Pathogen

TAINTED is available in digital format from all major on-line retailers. Press the button to go directly to your preferred digital bookstore.