FDA Raises Publix GreenWise Frozen Blueberry Recall to Its Highest Risk Level Over E. coli

Verified key facts

• The FDA issued a Class I designation on 18 August for four GreenWise frozen berry products sold exclusively at Publix, per CBS News
• The products are linked to 12 confirmed E. coli infections across Florida and Georgia, four requiring hospitalisation, according to Newsweek
• Affected items are GreenWise Organic Whole Blueberries and Organic Whole Mixed Berries in 10-ounce and 48-ounce packages, per the FDA
• The recalling firm is Frutas y Hortalizas del Sur S.A., over potential E. coli O145 contamination, per the FDA notice
• Berries were shipped to Publix stores in Alabama, Florida, Georgia, Kentucky, North Carolina, South Carolina, Tennessee and Virginia, per CBS News

The freezer aisle gets a Class I warning

The US Food and Drug Administration has upgraded a recall of frozen blueberries and mixed berries sold at Publix to a Class I designation, its highest risk level, indicating a reasonable probability that consuming the products will cause serious harm or death. The upgrade was issued on 18 August and covers four GreenWise-branded organic frozen berry products sold exclusively at the supermarket chain, according to CBS News.

A Class I designation is the strongest action in the FDA's recall classification system and is reserved for contamination that can kill. Newsweek reported that the agency's language cited a reasonable probability of death, phrasing that moves this from a routine precautionary withdrawal into the category shoppers genuinely need to act on.

Twelve infections, four in hospital

The recall is not theoretical. The berries have been linked to 12 confirmed E. coli infections across Florida and Georgia, four of which required hospitalisation, according to Newsweek. The strain involved, E. coli O145, is a Shiga toxin-producing variety that causes severe stomach cramps, diarrhoea that may be bloody, and vomiting, and can in serious cases progress to haemolytic uraemic syndrome, a form of kidney failure.

Children, older adults and people with weakened immune systems face the greatest risk of severe illness. Health officials note that symptoms typically appear three to four days after exposure, so cases linked to berries eaten recently may still emerge, and because frozen products sit in freezers for months, illnesses can continue to surface long after a contaminated lot has left the shelves.

Exactly which products are affected

The upgraded recall covers four products: GreenWise Organic Whole Blueberries and GreenWise Organic Whole Mixed Berries, each in both 10-ounce and 48-ounce packages, according to The Healthy's summary of the FDA update. All were sold under Publix's own GreenWise organic label.

The recalling firm is Frutas y Hortalizas del Sur S.A., which initiated the withdrawal of its frozen GreenWise organic IQF blueberries over potential E. coli O145 contamination, per the FDA's recall notice. The affected berries were shipped to Publix stores in Alabama, Florida, Georgia, Kentucky, North Carolina, South Carolina, Tennessee and Virginia, CBS News reported.

Why freezing offers no protection

The recall punctures a common assumption about the freezer aisle. Freezing halts bacterial growth but does not kill E. coli already present on fruit; the organisms survive months of frozen storage and revive on thawing. Tech Times headlined its coverage of the recall with exactly that warning: frozen does not mean safe.

Frozen berries are particularly troublesome because of how they are eaten. Unlike frozen vegetables, which are usually cooked, frozen blueberries go straight into smoothies, yoghurt and porridge without any heat step that would destroy pathogens. Food safety agencies have documented repeated outbreaks via frozen berries worldwide, most involving hepatitis A or norovirus; a Shiga toxin-producing E. coli on blueberries is a rarer and more dangerous finding.

What Publix shoppers should do now

The advice from the FDA and the retailer is unambiguous: do not eat any GreenWise organic frozen blueberries or mixed berries currently in a home freezer. Consumers should discard the product or return it to any Publix location for a full refund, with no receipt required, according to The Healthy.

Anyone who has eaten the recalled berries and develops severe or bloody diarrhoea, or signs of dehydration, should seek medical care and mention the exposure, since laboratory confirmation helps investigators map the outbreak. Doctors generally advise against taking anti-diarrhoeal medication or antibiotics for suspected Shiga toxin E. coli infection, as both can raise the risk of complications. Households that transferred the berries out of their original packaging should treat any unlabelled frozen blueberries bought at Publix in recent months as suspect, and surfaces or blenders that touched the fruit should be washed thoroughly with hot soapy water.

How a recall climbs to Class I

Recalls rarely begin at the highest level, and this one followed the typical escalation path. A firm's initial withdrawal is assessed by FDA scientists who assign a classification based on the hazard: Class III for products unlikely to cause harm, Class II for those that might cause temporary or reversible problems, and Class I for contamination with a reasonable probability of causing serious injury or death.

What moves a berry recall into the top category is the combination of pathogen and evidence. E. coli O145 belongs to the group of Shiga toxin-producing strains that food safety agencies treat with the same severity as the notorious O157:H7, and once confirmed infections were genetically linked to the product, the reclassification followed. The 18 August upgrade is the agency's signal that this is no longer precautionary: people have already been harmed, and packages still sitting in freezers can harm more.

A second recall in a week for American shoppers

The berry upgrade caps a busy stretch for US food safety authorities. It arrived within days of a separate salmonella-linked recall of Oma's Pride raw dog food across 11 states, and the two cases together have pushed recall notices back into American shopping conversations at the height of the summer produce season.

The pattern is less coincidence than surveillance working as designed: whole-genome sequencing now ties scattered illnesses to specific production lots with a speed that was impossible a decade ago, which means recalls escalate faster and more precisely than they once did. For consumers, the practical lesson of this one is simple and worth keeping: check the freezer, because time does not make contaminated food safe.

Sources

• CBS News - FDA upgrades recall of frozen blueberries sold at Publix to highest health risk level
• Newsweek - Blueberry Recall Update: FDA Issues Highest Risk Warning
• FDA - Frutas y Hortalizas del Sur S.A. Initiates Recall of Frozen GreenWise Organic IQF Blueberries
• The Healthy - Berry Recall: FDA Updates to Highest Risk Level
• Tech Times - Frozen Does Not Mean Safe: FDA Issues Highest Alert on GreenWise Blueberry Recall