Best non-toxic dog bowls

Uncoated food-contact surface, full cleanability, and enough weight to stay in place. That is the whole specification for a bowl, and it rules out most of the category immediately — which is why this is a short page.

We have not used these. Whether a particular dog tolerates a particular bowl is a question about the dog.

Plastic bowls scratch, and the scratches hold biofilm that cannot be fully cleaned out — which is a straightforward hygiene problem rather than a chemistry theory. They also absorb odors over time, and in sunny rooms they degrade.

There is a second, better-documented reason specific to some dogs: contact dermatitis around the muzzle is a recognized issue associated with plastic bowls in some animals, and switching to stainless is the standard first response. Between hygiene and dermatitis, plastic is the one bowl material with a real case against it.

Lead in ceramic glazes is a genuine historical issue and a current one for handmade, imported and vintage pieces. FDA assesses lead release from ceramicware using ASTM C738 — a 24-hour leach in 4% acetic acid, with a limit of 3 micrograms per milliliter for dinnerware — and items above those limits cannot legally be sold in the US.

For a mainstream manufacturer, asking whether the glaze meets FDA lead and cadmium limits is a reasonable question with an available answer. For a handmade bowl from a market stall, there is no such paperwork — which does not make it dangerous, but does make it unknown. And either way: a chipped bowl goes in the bin.

1. Wash the water bowl daily. Biofilm forms in water bowls faster than people expect, and it is slimy rather than invisible.
2. Dishwasher the food bowl. Stainless is indifferent to it; stoneware usually is too.
3. Replace any scratched plastic bowl rather than scrubbing it harder.
4. Retire chipped ceramic. The chip edge keeps breaking down into the food.
5. Use a mat rather than a heavier bowl if a dog pushes it around — cheaper and it protects the floor.

Plastic bowls, for hygiene and dermatitis reasons. Bowls with painted exteriors where the paint runs over the rim into food contact. Glazed bowls whose maker will not answer the leach-testing question. And automatic plastic water dispensers, which combine a plastic reservoir with standing water — the worst configuration in this category.