All Clayful products are handmade in our workshop in Vantaa, Finland. They are made of porcelain and fired to 1290°C. All products are glazed on the inside with a food-safe, lead-free glaze; some pieces are also glazed on the outside with the same glaze. Items left unglazed on the outside are wet-sanded after the final firing, resulting in a silky matte surface.
Unless otherwise stated, the products are dishwasher- and microwave-safe. They are not ovenproof and may not tolerate sudden or dramatic temperature changes (for example, moving directly from the freezer to the oven).
Although our wares are vitrified – meaning the kiln temperature was high enough to turn a certain amount of the clay components into glass, making the porcelain essentially impervious to water – and water absorption is close to zero, unglazed surfaces are still more susceptible to staining than glazed ceramics. To help prevent stains from becoming persistent, keep the wares clean with regular hand- or machine-washing.
If a stain does appear, it can typically be removed by scrubbing the surface with the abrasive side of a sponge and dishwashing liquid. For more stubborn stains, a melamine sponge (also known as a “magic sponge” or “white sponge”) may be effective.
Yes. Clayful is registered in Finland as a Food Contact Materials operator and follows applicable European safety requirements for the manufacture of products intended to come into contact with food. No substances on the EU Candidate List of Substances of Very High Concern (SVHC) are used in the manufacture of Clayful wares. Clayful wares were tested for lead and cadmium leaching, and the laboratory results show that the migration levels of lead and cadmium are significantly below the legally stipulated limits: cadmium (Cd) < 0.002 mg/L (limit ≤ 0.3 mg/L) and lead (Pb) < 0.005 mg/L (limit ≤ 4.0 mg/L).
Declarations of compliance and the inspection report from the Finnish Food Authority (year 2024).