The short answer depends on the specific product, its food-contact surface and how you use it. Research on plastic food-contact articles shows that they can shed micro- and nanoplastic particles during normal use, and that finding deserves attention. It does not yet show that switching to ceramic tableware improves health. Ceramic has its own questions, mainly about glaze and decoration. This article sets out what the evidence supports for each material and what that means at the table.
What is being compared
This article compares tableware that holds food: plates, bowls and cups made of plastic, and the same objects made of fired, glazed ceramic. Non-stick cookware and pans sold with a "ceramic" coating over a metal body are a different category and are not covered here. A glazed ceramic bowl is a fired clay body with a glass-like glaze fused to its surface; the US Food and Drug Administration describes glaze as "a thin, glass-like coating" applied to seal the clay. For the difference between stoneware and porcelain bodies, see our guide to Japanese stoneware and porcelain.
Plastic tableware: what the research has found
A 2025 systematic evidence map in npj Science of Food reviewed 103 studies of food-contact articles and concluded that their normal, intended use can release micro- and nanoplastic particles into food. The examples the authors give include opening bottles with plastic lids, cutting on plastic boards and brewing tea in plastic tea bags. The evidence base is uneven: only seven of the studies were rated highly reliable for tracing particles to their source. Read the evidence map.
Whether those particles harm people is a separate question. A 2025 review in Nature Medicine concludes that there are strong indications that exposure negatively affects human health, but that a robust evidence base is still lacking, because human studies so far have small numbers of participants and weak measurement of actual exposure. Read the review.
Taken together, the two papers support a cautious position: plastic in contact with food is a plausible source of particle exposure, and reducing it is a reasonable preference. They do not measure any health outcome from replacing plastic tableware with ceramic.
Ceramic tableware: what to pay attention to
For glazed ceramic tableware, lead and cadmium release from certain glazes and decorations is an established concern. Health Canada's guide to its glazed ceramics regulations describes the conditions that increase migration: worn, cracked or chipped surfaces release more; hot food and acidic food such as fruit juice or alcoholic drinks dissolve the metals more easily; and longer contact means more migration. Ceramic foodware sold in Canada and the EU is subject to requirements limiting lead and cadmium release (EU rules on ceramic articles in contact with food); Health Canada's limits vary by product type.
Two practical points follow. First, compliance is a property of the finished product, not of the material category, a colour or a description such as "natural". A pale glaze can fail; a bright one can pass. Second, once lead is in a glaze it cannot be removed at home: the FDA states that no amount of washing, boiling or other process can remove lead from pottery.
The FDA advises particular care with antique, damaged or excessively worn pottery, and pieces whose manufacturer cannot be reliably identified. Intentional glaze crackle, such as the crazing on some Hagi ware, is a surface texture rather than a structural crack, but it does hold liquid and stain; our Hagi ware guide explains what to expect.
What this means at the table
Heating. Microwave and dishwasher suitability are separate properties, set by the maker for the specific item; metallic decoration rules out the microwave. Our microwave and dishwasher guide goes through the rules by material.
Acidic and hot food. Heat, acidity and contact time can increase lead or cadmium migration when these metals are present and able to leach. If a piece's suitability for food use is unclear, keep it out of food service until you can confirm its intended use.
Storage. Use containers intended for food storage and follow any restrictions on temperature, reuse and food type. If you prefer glass or ceramic to reduce plastic contact, check the lid and lining as well as the container body.
Damage. Stop using ceramic tableware with chips, flaking glaze or cracks through the body for food or drink; Health Canada notes that worn, cracked or chipped surfaces release lead and cadmium more easily. For intentional glaze crackle, follow the maker's guidance for the specific piece.
First use. Wash a new ceramic piece as the maker directs and look it over for chips or hairline cracks before it goes into service; our first-use guide covers the routine.
In short
The two materials raise different questions: particle release from plastic food-contact articles, and metal migration from some ceramic glazes and decorations. Choose pieces intended for the way you will use them, follow their care instructions and pay attention to damage. The studies discussed here do not establish a health benefit from switching to ceramic tableware.
FAQ
Does plastic tableware release microplastics?
A 2025 systematic evidence map of 103 studies concluded that normal use of plastic food-contact articles can release micro- and nanoplastic particles into food. Only seven of those studies were rated highly reliable for tracing particles to their source.
Are microplastics proven to harm health?
Evidence points to potential harm, but the risks from everyday exposure are not yet well quantified. A 2025 review in Nature Medicine finds strong indications of harm but says a robust evidence base is lacking, mainly because human studies have been small and exposure is hard to measure.
Can ceramic dishes contain lead?
Some glazes and decorations do. Tableware sold for food use in Canada and the EU is subject to limits on lead and cadmium release. The risk rises with damaged glaze, hot or acidic food and long contact, and washing or boiling does not remove lead from pottery.
Is ceramic healthier than plastic?
Using ceramic tableware removes that plastic item as a potential source of plastic-particle release during food contact. The research discussed here does not establish that switching improves health. Choose tableware made for food use, in either material, and use it as intended.
Editor's note: For individual pieces, check the product description for material and care information, or contact ZenKiln with questions about intended use.
