Pyrex mixing bowls typically come in sets of 3 with a small, medium and large bowl that sits snuggly inside each other. Pyrex has been around for almost 90 years. Over 75 percent of households in America own at least one piece of Pyrex.

Like so many things we use today, the original idea led to the present glass dishes we know as Pyrex. Besides the pyrex mixing bowls pyrex makes many other glass dishes as well. The pyrex glass is a tough and unique invention.

Thanks to a railroad glass scientist needing to create a lantern that got hot but did not shatter when rain or snow got on it we now have pyres glass. The word Pyrex comes from the Greek Word pyro or fire, and Ex which refers to the type of glass. It does not expand or change shape when heated. This may be why Pyrex glass in the 1960s and