FDA’S HIGHEST WARNING Slams Publix Berries

Federal regulators just told Publix shoppers that frozen blueberries sitting in their freezers could cause severe illness or death.

Quick Take

The Food and Drug Administration (FDA) raised its recall of GreenWise Organic frozen blueberries and mixed berries to Class I, its most serious risk level.
The recall covers products sold at Publix stores and comes from Frutas y Hortalizas del Sur S.A., a grower-packer in Chile.
Health officials have linked the berries to a multistate E. coli O145:H28 outbreak with 12 confirmed illnesses and 4 hospitalizations.
No deaths have been reported, but the FDA says exposure carries a reasonable chance of serious harm.

What The FDA’s Highest Warning Actually Means

A Class I recall is not a routine label update. The FDA reserves it for cases with a “reasonable probability” that eating the product will cause serious health problems or death. Investigators use this top tier sparingly, and only after they see enough evidence connecting a specific product to real illnesses. That is exactly what happened here.

Publix first pulled GreenWise Organic Whole Blueberries and Whole Mixed Berries from shelves on July 29, citing possible contamination with E. coli O145:H28. At the time, the recall sat at a lower risk tier. Once the FDA and Centers for Disease Control and Prevention (CDC) confirmed the outbreak connection, the agency bumped the classification up to Class I on August 19.

Tracing The Outbreak Back To A Chilean Supplier

The berries trace back to Frutas y Hortalizas del Sur S.A., based in San Carlos, Chile, which sells product under the Comfrut brand. The company initiated its own recall on July 3 before Publix expanded the action to cover all lots of both blueberries and mixed berries. That expansion signaled growing concern that contamination wasn’t limited to a single batch or shipment.

The CDC’s investigation update confirms epidemiologic data pointing to GreenWise brand organic blueberries as the likely source of the E. coli sickening consumers across multiple states. As of the FDA’s July 30 update, the outbreak had produced 12 confirmed illnesses and 4 hospitalizations, with zero deaths reported. Health investigators continue monitoring for new cases tied to the same contaminated batches.

Why Frozen Berries Make Outbreaks Harder To Contain

Frozen produce creates a unique problem for food safety officials. Unlike fresh fruit that spoils or gets eaten quickly, frozen berries can sit in home freezers for months after a recall notice goes out. That extended shelf life means people can unknowingly eat contaminated product long after the initial warning, which is part of why the FDA treats delayed classification so seriously in cases involving frozen goods.

Food safety expert Benjamin Chapman has explained that a Class I designation reflects “a strong suspicion of a pathogenic microorganism being present,” representing a real threat to public health, not just a precaution. E. coli O145:H28 belongs to a group of Shiga toxin-producing bacteria capable of causing severe cramping, bloody diarrhea, and in vulnerable patients, kidney failure. That risk profile explains why regulators moved fast once the outbreak link solidified.

What Shoppers With Recalled Berries Should Do Now

The FDA’s guidance is blunt: do not eat, sell, or serve the recalled GreenWise Organic Frozen Whole Blueberries or Whole Mixed Berries. Anyone who bought these products at Publix should check their freezer, confirm the lot numbers against the recall notice, and either discard the items or return them for a refund. This isn’t a case where cooking the berries first makes them safe to eat.

The FDA has upgraded a frozen berry recall to its highest-risk Class 1 warning after an E. coli outbreak linked to GreenWise organic blueberries and mixed berries.https://t.co/ShM3HbxCUy

— gwurld (@Gwurld4026) August 21, 2026

The investigation remains active, with the FDA and CDC continuing to work alongside state health departments to track new cases and confirm the full scope of contamination. Consumers should watch for updates directly from the FDA rather than relying on secondhand reports, since recall details like lot numbers and expiration dates matter for confirming whether a specific package is affected.