PYREX vs pyrex confusion clarity

"PYREX" is safe. It is made from borcilica glass. The manufacturer still uses borcilica heat treated glass in France and so indicates what the bowls are made of by the lettering. All capitals indicates safe to use.

"pyrex" is NOT safe. It is made of soda glass and cannot withstand the thermal shock of being used in the oven or the IP. The soda glass has also been known to explode in the microwave; A fact that most people are unaware of.

Soda glass bowls are manufactured in the USA. Borcilica are old bowls, or have been imported from France. The company changed their product after the company was sold and they began cutting corners, because soda glass costs less to manufacture than the heat treated glass...

** My husband is passionate about glass and is a glass blowing hobbiest. Yes, I know, I'm too helpful.


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