Few noticed this big change with their beloved Pyrex glassware.
Any Southern cook worth their salt knows and trusts several brand names when it comes to cook- and bakeware.
At that point, they switched to manufacturing products with tempered soda lime instead.
Credit:Monica Farber
Why Pyrex Made The Change
So, why did Pyrex make the change all those years ago?
Two primary causes: increased air pollution regulations and a focus on reducing energy consumption.
