CDC, public health and regulator officials in several states, and the FDA investigated an outbreak of E. coli O157:H7 infections linked to RAW FARM brand raw cheddar cheese. As of February 28, 2024, a total of 11 people infected with the outbreak strain were reported from 5 states. Illnesses started on dates ranging from October 18, 2023, to February 5, 2024. Five people were hospitalized, and two people developed hemolytic uremic syndrome (HUS). No deaths were reported.

Of 8 people interviewed, 6 (75%) reported eating RAW FARM brand raw cheddar cheese. This percentage is significantly higher than the 4.9% of respondents who reported eating any raw milk cheese in the FoodNet Population Survey. The difference suggests that people in this outbreak got sick from eating RAW FARM brand raw cheddar cheese.

Officials in California, Colorado, and Utah collected various Raw Farm products for testing including raw milk, raw butter, raw cheddar cheese, and raw kefir. As of February28, 2024, no samples had detected E. coli. Additional testing was ongoing.

On February 26, 2024, Raw Farm brand withdrew their recall. However, CDC continued to advise people not to eat, sell, or serve Raw Farm brand raw cheddar cheese because the investigation was still underway.

RAW FARM LLC was previously called Organic Pastures, LLC.