I have a classic olla that I use for cooking my beans.  My
mother-in-law told me to boil water with salt in it until almost gone for
several times before using.  I don’t know if my pot has lead in it or not,
but I purchased it in Michoacan, in a village where they are famous for
them.  My mother-in-law and her relatives use these pots all the time to
cook and serve…and they are still living…….

 

But just in case, I found this site you might be interested in:

 

 

Esperanza