“If the Lead is only on the OUTSIDE (… of my dish, measuring cup, mixing bowl, etc.) why does it matter?”
Vintage (c. 1972) “Butterfly Gold” Pyrex Casserole Dish: 87,000 ppm Lead. [Context: 90 ppm Lead is unsafe for kids.]
Vintage Pyrex Casserole, “Shenandoah” Pattern c. 1981-1986: Yellow Exterior – 212,000 ppm Lead. 90 ppm is unsafe for kids.