For UK readers, here is the regulation around amount of lead and cadmium in ceramics that are in contact with food. https://www.legislation.gov.uk/uksi/2006/11

For UK readers, here is the regulation around amount of lead and cadmium in ceramics that are in contact with food. https://www.legislation.gov.uk/uksi/2006/1179/made https://www.legislation.gov.uk/uksi/2006/1179/made I'm not 100% sure of the maximum safe lead per day, though I did find this https://www.hse.gov.uk/lead/health-effects.htm https://www.hse.gov.uk/lead/health-effects.htm > The occupational exposure limit for lead in air set out in the Regulations is 0.15 mg/m3, and blood lead suspension levels for males and females are 60 and 30ug/dl, respectively. For young workers (under 18) the blood lead suspension limit is 50 μg/dl. But someone with better dotUKfu may provide a better source!