I managed to find some more details on that story and it seems like they got the cause and effect reversed >When World Kitchen took over the Pyrex brand, it st

I managed to find some more details on that story and it seems like they got the cause and effect reversed >When World Kitchen took over the Pyrex brand, it started making more products out of prestressed soda-lime glass instead of borosilicate. With pre-stressed, or tempered, glass, the surface is under compression from forces inside the glass. It is stronger than borosilicate glass, but when it’s heated, it still expands as much as ordinary glass does. It doesn’t shatter immediately, because the expansion first acts only to release some of the built-in stress. But only up to a point. >One unfortunate use of Pyrex is cooking crack cocaine, which involves a container of water undergoing a rapid temperature change when the drug is converted from powder form. That process creates more stress than soda-lime glass can withstand, so an entire underground industry was forced to switch from measuring cups purchased at Walmart to test tubes and beakers stolen from labs. https://www.popsci.com/science/article/2011-03/gray-matter-cant-take-heat/ https://www.popsci.com/science/article/2011-03/gray-matter-c... So it was very popular with drug labs, the recipe changed because new owners, so yes many drug lab chemists probably got hurt and they had to switch over from common Pyrex cookware to actual lab grade stuff. Makes a lot more sense, because I don't think even the DEA would try to restrict glassware. Maybe one day though!