Please stop using vintage Pyrex glassware for cooking & serving food — it’s often coated with high-Lead paint & can test positive for Cadmium, Arsenic
“If the Lead is only on the OUTSIDE (… of my dish, measuring cup, mixing bowl, etc.) why does it matter?”
Pyrex® Glass Measuring cup (c. 1994): 6,253 ppm Lead in red Outside Markings (90 ppm is unsafe for kids)
Pyrex Glass Measuring Cup: Positive for 326 ppm Cadmium in the Red Exterior Writing. 75 ppm is illegal in Denmark.
Purple Pyrex glass measuring cup: 20,700 ppm Lead (90 is unsafe*) +175 ppm Cadmium (Yum! What are you baking with?)
“How much Lead is in my vintage Pyrex?” Here are pictures of each one I’ve tested, with links to test results.
Pyrex Glass 100th Anniversary Measuring Cup (2013): Positive for 54 ppm Cadmium in the Dark Blue Exterior Markings.