A potato chip recall that began quietly in May 2026 has been upgraded to the Food and Drug Administration's most serious warning level, meaning the government has determined there is a reasonable probability that consuming these chips could cause serious adverse health consequences or death.
Nearly two months after a voluntary recall of certain limited varieties of Zapp's and Dirty brand potato chips, the recall has been upgraded to the Food and Drug Administration's most serious risk level over possible Salmonella contamination. Utz Quality Foods initially recalled the chips in May. The FDA has now classified it as a Class I recall — "a situation in which there is a reasonable probability that the use of or exposure to a violative product will cause serious adverse health consequences or death," according to the FDA.
Officials say they are recalling more than 650,000 bags of Zapp's and Dirty potato chips. The Class I recall involves chips voluntarily recalled by Utz Quality Foods in May after the company learned a seasoning ingredient made with dry milk powder — sourced from California Dairies Inc. and supplied by a third-party supplier — could potentially contain Salmonella.
Why This Matters
Class I is the highest designation in the FDA's recall classification system. The agency uses this label when it determines that exposure to the product creates a plausible pathway to death or serious injury. For Salmonella, that risk is real — particularly for young children, older adults, pregnant people, and immunocompromised individuals.
Utz Quality Foods said no illnesses have been reported. That statement is important context — the recall is precautionary, not confirmed-outbreak-linked. But the Class I classification reflects the FDA's assessment that the contamination risk, if present, is serious enough to treat with maximum urgency.
What We Know So Far
Utz Quality Foods said the seasoning batches tested negative for Salmonella before production. However, the company recalled the chips out of an abundance of caution after its ingredient supplier notified it of the separate milk powder recall. The FDA classified the recall as Class I on July 1, 2026.
The nine recalled products (all with best-by dates in July or August 2026):
| Product | Sizes | Best-By Range |
| Zapp's Bayou Blackened Ranch | 1.5 oz, 2.5 oz, 8 oz | July 27–Aug. 31 |
| Zapp's Salt and Vinegar | 1.5 oz | July–Aug. |
| Zapp's Big Cheezy | 2.5 oz, 8 oz | Aug. 31 |
| Dirty Salt and Vinegar | 2 oz | Aug. 3–10 |
| Dirty Maui Onion | 2 oz | Aug. 8 |
| Dirty Sour Cream and Onion | 2 oz | Aug. 31 |
For specific UPC codes and batch codes, visit the FDA enforcement report.
These chips were sold nationwide at Walmart, Kroger, Publix, Fry's, Ralphs, and Food4Less, among other retailers.
Where the Risk Is Highest
Because these chips were distributed nationally through major retail chains, the exposure is not geographically limited. The chips were distributed across 34 states. Anyone in the United States who purchased Zapp's or Dirty brand chips in the affected flavors with best-by dates in July or August 2026 should check the batch code on the bag.
What Doctors and Experts Say
Salmonella infections are typically self-limiting in healthy adults — symptoms resolve within 4 to 7 days without antibiotics. However, serious complications can occur in high-risk populations. In rare cases, Salmonella infections can spread to the bloodstream and cause life-threatening complications, including arterial infections, endocarditis, and arthritis.
What the Evidence Shows — and What It Does Not
MedicalDaily Evidence Check
- Pathogen concern: Salmonella (source: dry milk powder from California Dairies Inc., supplied through third party)
- Confirmed illnesses: Zero reported as of recall date
- Recall classification: FDA Class I (highest risk level)
- Total bags affected: More than 650,000
- Brands: Zapp's and Dirty (both by Utz Quality Foods)
- Distribution: Nationwide, 34 states
- What it shows: FDA assessment that there is a reasonable probability of serious harm if contamination is present
- What it does not prove: That Salmonella was confirmed in finished chip products; seasoning source tested negative before use
- What readers should know: Even without confirmed illnesses, the Class I designation warrants discarding any affected product immediately
Who Faces the Greatest Risk?
- Infants and children under 5 — highest risk of severe Salmonella illness
- Adults 65 and older
- Pregnant people — Salmonella can cause pregnancy complications
- Immunocompromised individuals — including cancer patients, transplant recipients, people with HIV
Symptoms and Warning Signs to Watch For
Salmonella symptoms typically begin 6 hours to 6 days after exposure: diarrhea (may be severe), fever, stomach cramps, nausea and vomiting, and headache.
Seek emergency care if symptoms include bloody stool, high fever above 102°F, signs of dehydration, or signs of serious infection (stiff neck, confusion, inability to keep fluids down).
What You Can Do Now
- Check your pantry for Zapp's (Bayou Blackened Ranch, Salt and Vinegar, Big Cheezy) and Dirty brand chips (Salt and Vinegar, Maui Onion, Sour Cream and Onion) with best-by dates in July or August 2026.
- Check the batch code on the bag against the FDA recall page to confirm whether your specific bag is affected.
- Do not eat the chips if they match the recalled batch codes. Discard them immediately.
- Contact Utz for refund information: call 1-877-423-0149, Monday–Friday 9 a.m. to 6 p.m. ET.
The Bottom Line
The FDA's Class I classification of the Zapp's and Dirty chip recall means the agency believes there is a real probability of serious harm from consuming the affected product. No illnesses have been reported, but no risk should be taken with chips in your pantry matching the recalled batch codes. Check the bag. Discard if affected. Call Utz at 1-877-423-0149 for a refund.
