They would cook food in lead pots, which made it poisonous: https://en.wikipedia.org/wiki/Lead(II)_acetate#Sweetener https://en.wikipedia.org/wiki/Lead(II)_acet

They would cook food in lead pots, which made it poisonous: https://en.wikipedia.org/wiki/Lead(II)_acetate#Sweetener https://en.wikipedia.org/wiki/Lead(II)_acetate#Sweetener