What was recalled
This page synthesizes seven Listeria events in U.S. raw pet food production from 2015 to 2022. The 2015 Stella & Chewy’s event was the inflection point that drove industry-wide HPP (high-pressure processing) adoption as the standard kill step for raw pet food. The 2016 Vital Essentials Listeria event at Carnivore Meat Company demonstrated that even freeze-drying does not eliminate Listeria exposure when raw ingredient streams carry the pathogen. The 2018 Rad Cat Raw Diet event at Radagast Pet Food (Portland, OR) is the canonical example of cascading multi-lot Listeria recall driving manufacturer exit: the recall expanded across a 15-month production window covering all five protein varieties (chicken, turkey, beef, lamb, pork, venison), and Radagast ceased operations in October 2018.
The 2018 OC Raw Dog event covered approximately 1,560 lbs of Chicken Fish & Produce Raw Frozen Canine Formulation (Lot 3652, mfg 10/11/2017) after NJ Dept of Agriculture testing detected Listeria; single-lot, no illnesses. The 2019 Bravo Packing event added Listeria to a Salmonella detection profile (lot 072219, July 22, 2019), expanding the contamination pathway concern; Bravo Packing did not initiate a voluntary recall in 2019, leaving the FDA advisory as the primary public communication path. The 2022 Primal Pet Foods event covered a single-lot Listeria detection post-HPP — demonstrating that even kill-step-treated raw pet food remains vulnerable to post-treatment environmental drift if facility hygiene allows downstream contamination.
Why it was recalled
Listeria monocytogenes is a Gram-positive bacterium adapted to cold-temperature growth — it can proliferate in refrigerated and frozen environments where most foodborne pathogens cannot grow. Raw pet food production at temperatures ≤ 4°C is therefore an ideal Listeria niche. The bacterium colonizes environmental surfaces (floor drains, walk-in freezer surfaces, processing equipment biofilm) and persists across cleaning cycles. Once an environmental harborage point is established, multiple product lots can be cross-contaminated independent of incoming ingredient quality. The cascading multi-lot recall pattern — events expanding to cover months or years of production after initial detection — is characteristic of unresolved environmental harborage.
Standard control measures include: aggressive environmental monitoring programs with regular sampling of facility surfaces and finished product; kill steps applied to finished product (HPP at 600 MPa for 6 minutes, freeze-drying with Listeria-validated parameters); and strict zone-separation protocols in raw production facilities (raw-ingredient zones physically separated from post-kill-step zones with different equipment, personnel, and cleaning protocols). The 2015 Stella & Chewy’s event drove industry HPP adoption; the 2022 Primal event demonstrated that HPP alone is not sufficient if facility hygiene allows post-HPP environmental drift. The CDC Listeria information resource documents the clinical course.
Health risks for your pet
Most raw pet food Listeria recalls in the 2015-2022 window were detection-driven by FDA inspection sampling rather than illness-driven by consumer reports. Listeria monocytogenes in pets can cause diarrhea, vomiting, fever, anorexia, and lethargy; severe cases involve septicemia or CNS disease. The human-handling zoonotic risk pathway is the dominant concern: Listeria monocytogenes is particularly concerning for pregnant women (miscarriage, stillbirth, neonatal infection), infants, the elderly, and immunocompromised adults (septicemia, meningitis). Mortality in severe human listeriosis ranges 20-30%. Pets infected with Listeria can shed bacteria in stool and saliva for weeks after clinical recovery, exposing owners through litter-box and food-prep surface contact. The dominant risk profile is therefore asymptomatic-pet-to-vulnerable-human transmission rather than direct pet illness.
What to do if you bought affected product
If you currently feed raw pet food, check whether the manufacturer documents HPP or freeze-drying with Listeria-validated parameters, publishes environmental monitoring results, and has had no FDA inspection findings or Warning Letters in the past 5 years. Brands without these protocols carry elevated Listeria exposure risk. Pet owners feeding raw pet food should follow strict handling-hygiene protocols: separate cutting boards and utensils for raw pet food, immediate handwashing after handling, no cross-contamination with human food prep surfaces, and avoid raw pet food handling by pregnant women, infants, and immunocompromised household members. Listeria is inactivated by standard household disinfectants and heat above 60°C; clean food bowls and prep surfaces with hot soapy water after each meal. If a pregnant woman in your household develops fever, headache, or muscle aches, mention raw pet food handling history to her physician — Listeria meningitis and septicemia are treatable but require prompt antibiotic intervention.
How this affects KibbleIQ’s grade
The brands affected by the 2015-2022 raw-food Listeria pattern (Stella & Chewy’s, Vital Essentials, Rad Cat Raw, OC Raw Dog, Bravo Packing/Performance Dog, Primal) are not currently in the KibbleIQ scored database; standalone raw frozen is a distinct format that our methodology v15 does not yet specifically score per our published methodology. The 2015-2022 pattern is structurally informative for future Raw Pet Food Rubric design: kill-step documentation (HPP, freeze-drying with Listeria-validated parameters), environmental monitoring program transparency, and zone-separation protocol documentation all belong in any raw pet food quality evaluation. Recall-history scoring under our planned methodology v2 will weight cascading multi-lot Listeria patterns (Rad Cat Raw 2018, three Bravo Packing events) substantially more than isolated single-lot detections (OC Raw 2018, Primal 2022) — the cascade indicates unresolved environmental harborage rather than transient contamination.