Products & safety
Pet food hygiene: cooked and raw categories, household contact and dated contamination evidence
On this page
Pet food hygiene concerns germs carried by food, bowls, utensils and pets into a household. People need not eat the pet food to be exposed. FDA warns that both food and treats can contain bacteria that cause illness in people or animals. A feeding decision therefore includes household handling as well as the animal’s dietary needs.[2]
Separate the categories before comparing risks
| Category | Relevant distinction | Exposure boundary |
|---|---|---|
| Cooked kibble | Heated before drying; some products add raw coatings | A raw addition changes the category[1] |
| Canned food | Sealed and heat-sterilized | Storage after opening still matters[1] |
| Fresh cooked food | Cooked, often refrigerated | Fresh does not necessarily mean raw[1] |
| Raw animal-protein food | Uncooked meat, organs, eggs or unpasteurized milk | Includes frozen, dried and some treats[1] |
Bowls and storage are part of the exposure
FDA advises clean hands before and after handling food or treats, washing bowls and utensils after use, and using a separate clean scoop rather than scooping with the pet’s bowl. Retain the original dry-food bag and follow storage guidance; refrigerate or discard leftover opened wet food promptly. Damaged packaging, spoiled food and contaminated utensils require attention even when the product was originally cooked.[2]
Evidence & uncertainty
FDA’s 2010–2012 laboratory study found a higher proportion of raw samples positive for the named bacteria than in other tested categories. Laboratory detection establishes a hazard in sampled food; it does not measure the probability that a particular household member will become ill.[3]
Selected-source overview · Independent review pendingPublished questions
Does freezing or freeze-drying make raw pet food germ-free?
Selected-source overview · Independent review pending. Read the evidence context.
No. CDC says freezing, dehydration and freeze-drying can reduce germs without eliminating all of them. A frozen or dried animal-protein product may remain in the raw category.[1]
Evidence behind this answer
- About Pet Food Safety
agency prevention guidance · 2025
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · Cooked versus raw forms; freezing and drying; nutritional and nonthermal-processing boundaries
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
Can contaminated dry dog food cause human infections?
Selected-source overview · Independent review pending. Read the evidence context.
Yes. The 2012 outbreak linked human cases to dry food using product testing, interviews and animal findings. It establishes that this route occurs, rather than measuring risk from every dry-food bag.[4]
Evidence behind this answer
- Human Salmonella Infantis Infections Linked to Dry Dog Food, 2012
outbreak investigation · 2012
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · February–May cases, unopened food and symptomatic/asymptomatic dogs; direct/indirect exposure
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
Is fresh refrigerated pet food always raw?
Selected-source overview · Independent review pending. Read the evidence context.
No. CDC describes fresh cooked foods that require refrigeration. Check the preparation category and label rather than treating fresh, frozen and raw as interchangeable.[1]
Evidence behind this answer
- About Pet Food Safety
agency prevention guidance · 2025
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · Cooked versus raw forms; freezing and drying; nutritional and nonthermal-processing boundaries
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
Why should a pet bowl not be used as the food scoop?
Selected-source overview · Independent review pending. Read the evidence context.
FDA advises a separate clean utensil reserved for pet food, and washing bowls and utensils after use. Bowl cleanliness and food handling are linked parts of household hygiene.[2]
Evidence behind this answer
- Tips for Safe Handling of Pet Food and Treats
agency prevention guidance · Date not stated
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · Contamination, clean hands, separate scoops, bowl washing and storage
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
Do the FDA sample counts give my family’s infection probability?
Selected-source overview · Independent review pending. Read the evidence context.
No. They describe laboratory contamination in selected products from 2010–2012. Household illness also depends on exposure and susceptibility, which that sampling study did not measure.[3]
Evidence behind this answer
- Get the Facts! Raw Pet Food Diets can be Dangerous to You and Your Pet
agency laboratory study summary · Date not stated
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · 2010–2012 sampling design and category-specific Salmonella/Listeria counts
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
Did the RAWR notice establish a human H5N1 infection from pet food?
Selected-source overview · Independent review pending. Read the evidence context.
No. It described a food–cat link and explicitly reported no known human infections through contaminated pet food. That observation is dated and does not make contaminated food safe to handle.[6]
Evidence behind this answer
- H5N1 Contamination in Certain Lots of RAWR Raw Cat Food Chicken Eats
agency product investigation · Date not stated
Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal · Cat/opened-food/retail-lot sequencing; common-source interpretation; no known human pet-food infections
This answer summarizes selected sources. An independent appraisal of the complete evidence has not been completed.
What the raw-food sampling actually tested
In the study’s second year, FDA purchased 196 commercially available raw dog and cat foods online and sent them to six laboratories. Fifteen samples contained Salmonella and 32 contained Listeria monocytogenes. Other product categories had different sample totals; dry cat food had one Salmonella-positive sample. The products were largely frozen ground-meat preparations. These historical samples support the contamination concern without representing every present-day recipe, manufacturer or processing system.[3]
Cooked categories can still have contamination incidents
A 2012 investigation reported 22 human Salmonella Infantis cases in the United States and Canada during February–May. Testing found the outbreak strain in an unopened dry-food bag and in an ill and an asymptomatic dog that ate recalled products. Multiple brands came from one implicated facility. This supports direct or indirect household exposure from contaminated dry food, while the investigation cannot supply an annual risk for all kibble users.[4]
A historical recall illustrates what to remove
CDC’s January 2024 notice for a 2023 dry-food outbreak instructed owners to discard affected food securely, prevent children from touching it, and clean items that contacted it. Pets can shed Salmonella through feces or saliva without obvious illness. Young children, older adults and people with weakened immunity can have more severe illness. That notice concerns named recalled products and dates, rather than a current recall of all dry food.[5]
A food finding and a human infection finding are different
FDA’s RAWR cat-food notice described related H5N1 sequences in a sick cat, its opened food and another retail lot. The evidence suggested a common contamination source. The agency reported no known human HPAI cases contracted through contaminated pet food in that notice. This is a serious animal-health finding and a plausible human exposure concern; it does not establish that a human infection occurred or predict illness from every raw product.[6]
Processing claims need a specific hazard and control
FDA’s September 2025 reminder requires covered manufacturers using specified uncooked or unpasteurized poultry or cattle materials to reconsider H5N1 in food-safety plans. It describes heat treatment capable of inactivating the virus and supply-chain controls. A manufacturer’s hazard plan and household handwashing address different stages. Neither a natural label nor a food-safety-plan requirement demonstrates that a particular package is free of every pathogen.[7]
Nutritional appeal does not settle infection safety
CDC distinguishes nutritional balance from microbial safety: raw and cooked foods can each be nutritionally adequate or inadequate. It also notes uncertainty about how reliably facilities apply pressure or irradiation processes. Advocates’ preference for minimally heated food does not resolve that implementation question. Veterinary nutrition advice can address the animal’s needs, while CDC continues to advise against raw dog and cat foods and treats.[1]
References
- About Pet Food Safety
Agency prevention guidance
CDC · Content/publication date: 2025
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: Cooked versus raw forms; freezing and drying; nutritional and nonthermal-processing boundaries - Tips for Safe Handling of Pet Food and Treats
Agency prevention guidance
FDA · Content/publication date: not stated
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: Contamination, clean hands, separate scoops, bowl washing and storage - Get the Facts! Raw Pet Food Diets can be Dangerous to You and Your Pet
Agency laboratory study summary
FDA · Content/publication date: not stated
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: 2010–2012 sampling design and category-specific Salmonella/Listeria counts - Human Salmonella Infantis Infections Linked to Dry Dog Food, 2012
Outbreak investigation
CDC and investigating agencies · Content/publication date: 2012
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: February–May cases, unopened food and symptomatic/asymptomatic dogs; direct/indirect exposure - Salmonella Outbreak Linked to Dry Dog Food, November 2023
Agency outbreak guidance
CDC · Content/publication date: 2024
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: January 2024 affected-product handling; animal shedding and human vulnerability - H5N1 Contamination in Certain Lots of RAWR Raw Cat Food Chicken Eats
Agency product investigation
FDA · Content/publication date: not stated
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: Cat/opened-food/retail-lot sequencing; common-source interpretation; no known human pet-food infections - Cat and Dog Food Manufacturers Required to Consider H5N1 in Food Safety Plans
Agency regulatory safety guidance
FDA · Content/publication date: 2025
Accessed: 2026-10-14 UTC · Selected original official full-text passages inspected on 2026-10-14 UTC; no independent systematic appraisal
Cited sections: September 2025 reminder; specified ingredients, processing and supply-chain controls
Scope & review
- Population
- Dog/cat households, including people vulnerable to severe infection; studies concern sampled foods or specific outbreaks
- Exposure or intervention
- Handling cooked/raw food, bowls, utensils and exposed pets
- Comparison
- Cooking categories, sampled product types and specific contaminated lots
- Outcomes
- Food contamination, animal illness and household human exposure
- Timeframe
- Routine household contact; each outbreak or study retains its stated dates
- Jurisdiction
- Selected US agency guidance, with specifically identified Canadian or European research; local animal-ownership rules and reporting pathways vary
Selected-source educational explanation. Official guidance, original study findings and editorial interpretation are distinguished. No exhaustive search, independent systematic synthesis or qualified medical review has been completed.
Sources checked on their individual access dates. Selected sources were checked; ongoing surveillance and qualified review have separate statuses on the coverage page.
Revision history
- 2026-10-14 UTC: Added a bounded household animal-health explanation; independent qualified review remains pending.
What this article still leaves open
- How reliably are individual nonthermal processes validated for each pathogen?
- What is the present absolute risk in differently susceptible households?
Suggest a correction
Submit a content correction to the editorial queue, or download a local note. Leave out personal medical details. Submitted text is stored privately with a browser receipt session and is visible to this browser and the editor. Clearing cookies removes access to your submission history. This is not an account or a medical service.
Your submitted corrections for this article
Explore the topic map
Browse the health domains connected to this article. The map also identifies topics whose articles remain unwritten.