In days of olde
people with money had plates made of pewter. Food with a high acid content caused
some of the lead to leach into the food. This happened most often with tomatoes,
so they stopped eating tomatoes.... For 400years! Most people didnt have
pewter, they had trenchers-a piece of wood with the middle scooped out like a
bowl. Trenchers were never washed and worms got into the wood. After eating from
worm ridden trenchers they would get Trench mouth.