Food safety officials are urging consumers to check refrigerators and freezers after a multistate outbreak of E coli infections was linked to raw milk cheese produced by Sierra Nevada Cheese Company. As of September 25, 2026, federal investigators had identified 13 illnesses across nine states, with more than half of those affected being children age five or younger. The recall highlights the continuing risks associated with unpasteurized dairy products and the importance of rapid action when contaminated food reaches consumers.
A Dairy Recall That Has Reached Multiple States
The current investigation involves Graziers grass fed raw milk cheeses produced by Sierra Nevada Cheese Company. The affected products include raw medium cheddar, raw sharp cheddar, raw Monterey Jack and raw jalapeño Jack. The cheeses were sold in retail packages and were also distributed through food service channels and wholesalers, giving the recall a broader reach than a single store or local market incident.
The Food and Drug Administration and the Centers for Disease Control and Prevention are working with state and local public health officials to identify additional illnesses and determine the full distribution of the contaminated products. The FDA said the company agreed to and initiated a recall on September 24 after the agency contacted the firm about the outbreak.
For consumers, the message is straightforward. A product that has been sitting unopened in a refrigerator can still present a risk if it belongs to the recalled group. The CDC has specifically warned that these cheeses have a long shelf life, making it important for households to inspect products that may have been purchased weeks earlier.
What Investigators Know About the E Coli Outbreak
The outbreak involves E coli O26:H11, a strain of Shiga toxin producing E coli that can cause severe gastrointestinal illness. Federal investigators reported 13 confirmed illnesses across nine states as of September 25. Eight people had been hospitalized, and three developed hemolytic uremic syndrome, a serious complication that can affect the kidneys. The patients ranged in age from one to 58 years, with a median age of five.
The investigation has several pieces of evidence pointing toward the same food source. Public health officials interviewed nine people who became ill, and all nine reported eating Sierra Nevada Cheese Company Graziers raw milk cheese. Investigators also used whole genome sequencing to compare bacteria from patients. The bacterial samples were closely related genetically, supporting the conclusion that the illnesses were connected to a common source.
That evidence matters because foodborne outbreaks can be difficult to trace. A person may become sick days after eating a contaminated product, and the original package may already have been discarded. Laboratory testing and interviews allow investigators to connect apparently unrelated illnesses across different communities and states.
Which Products Are Covered by the Recall?
The recalled products are Graziers raw milk cheeses made by Sierra Nevada Cheese Company. The CDC identifies four varieties: raw medium cheddar, raw sharp cheddar, raw jalapeño Jack and raw Monterey Jack. Retail versions were sold in eight ounce and 16 ounce packages, while food service customers and wholesalers could receive five pound loaves.
Consumers should not rely only on the appearance or smell of a cheese when deciding whether it is safe. Harmful bacteria may not produce an obvious change in color, texture or odor. The safest approach is to compare the product against the official recall information and follow instructions from federal and state health authorities.
The FDA food safety and recall resources provide current information about recalls, foodborne illness investigations and safety alerts. The CDC also maintains public information about active foodborne outbreaks and recommended actions for consumers.
Why Raw Milk Cheese Requires Extra Caution
Raw milk cheese is made from milk that has not undergone pasteurization. Pasteurization uses controlled heat treatment to reduce harmful microorganisms that may be present in milk. When that step is absent, bacteria that enter the milk during production can remain in the finished food.
The CDC advises consumers to choose pasteurized milk and dairy products, particularly when serving young children. The agency says children under five are more likely to experience severe illness from foodborne pathogens.
That warning is especially relevant to the current outbreak because more than half of the identified patients are five years old or younger. A product that may seem like an ordinary refrigerator staple can carry a much greater health risk for a young child than many families realize.
Raw Dairy Has Been Linked to Other Outbreaks
The September investigation is not an isolated food safety concern. CDC records show that raw dairy has been associated with other E coli investigations during 2026. Earlier this year, a separate outbreak led to a recall involving Raw Farm raw cheddar cheese.
Federal investigators are also tracking other foodborne illness events involving dairy products. A separate Listeria investigation during 2026 involved soft and cottage style cheeses, demonstrating that contamination concerns can involve different bacteria and different production environments.
What Consumers Should Do if They Have Recalled Cheese
Anyone who finds recalled Graziers raw milk cheese at home should not eat it. The CDC advises consumers to throw recalled products away or return them. People should also clean items and surfaces that may have come into contact with the cheese, using hot soapy water or a dishwasher where appropriate.
That means checking more than the refrigerator shelf. Cheese may have been placed on cutting boards, knives, serving plates or containers. If a recalled product was used to prepare a meal, cleaning the surrounding surfaces can reduce the chance of transferring bacteria to other foods.
Consumers should also avoid tasting a recalled product to determine whether it is safe. Foodborne bacteria cannot reliably be detected through taste, smell or appearance.
Symptoms Can Become Serious
E coli infections can cause severe stomach cramps, diarrhea and vomiting. Diarrhea may become bloody in some cases. Most people recover, but certain infections can lead to complications that require hospitalization.
Hemolytic uremic syndrome is one of the most serious complications associated with Shiga toxin producing E coli. It can damage red blood cells and the kidneys and is particularly concerning in young children. The current outbreak has already involved three reported cases of this complication.
The CDC advises people to contact a health care provider promptly if they develop concerning symptoms after eating recalled cheese. Warning signs include bloody diarrhea, diarrhea lasting more than two days, severe vomiting that prevents adequate fluid intake, a high fever with diarrhea and signs of dehydration such as reduced urination, dry mouth or dizziness when standing.
Why Recalls Can Continue After Products Reach Homes
Food distribution networks can move products through multiple states before a contamination investigation identifies the source. Cheese can be sold directly to consumers, supplied to restaurants or distributed through wholesalers. By the time health officials connect illnesses to a particular product, some packages may already be sitting in household refrigerators or commercial kitchens.
This is why recall notices remain relevant after the initial announcement. The CDC says recent illnesses may take several weeks to be identified as part of an outbreak. It also warns that the actual number of illnesses may be higher than the reported count because some people recover without seeking medical care or are never tested for E coli.
The same investigation process also explains why official case numbers can change. New interviews, laboratory results and genetic comparisons can reveal additional cases or clarify whether an illness belongs to the outbreak.
Food Safety Depends on Consumers and the Supply Chain
We often think of food safety as something handled behind factory doors or inside government laboratories. The current recall shows how many links must work together. Producers must maintain safe manufacturing practices. Retailers and restaurants must respond quickly to recall notices. Public health officials must identify patterns among illnesses. Consumers must check their homes and act when a product is recalled.
For families, the practical lesson is not to panic but to pay attention. A recall notice is designed to provide a clear path to action. Checking the refrigerator, avoiding recalled products and seeking medical guidance when serious symptoms appear are simple steps that can reduce unnecessary exposure.
What Happens Next in the Investigation
The FDA investigation remains active, with federal, state and local officials continuing to collect information about illnesses and food consumption. Investigators are also using laboratory methods to determine how closely related the bacteria from different patients are and whether additional cases are connected to the same source.
Additional information could change the scope of the recall or the number of identified illnesses. Consumers should therefore rely on current information from federal health agencies rather than older social media posts or incomplete lists circulating online.
The September 2026 dairy recall is a reminder that food safety does not end when a product reaches a supermarket shelf. For a young child eating a slice of cheese at the kitchen table, the supply chain may be invisible. Behind that simple meal, however, is a network of producers, inspectors, laboratories, retailers and health officials working to identify risks before more families are affected.
For now, consumers should avoid the recalled Sierra Nevada Graziers raw milk cheeses, check refrigerators and freezers carefully, clean surfaces that may have contacted recalled products and seek medical advice if serious symptoms develop after exposure. Those steps remain the most direct way for households to respond while investigators continue working to determine the full scope of the outbreak.
