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  6. Note that this information only applies to America, where the video is made, and where a greedy company bought the rights to Pyrex and swapped in the cheaper soda-lime glass; if you live anywhere else it is likely your Pyrex is still the more expensive, less profitable, but ultimately safer borosilicate

  9. STOP!!! This is absolute slander. Soda lime glass holds up well enough to temper changes that Pyrex is not exploding in everyone’s oven. We all try and be delicate with our glass wear. But accidents happen. I honestly expected better from gear heads.

  19. Thanks for the instruction on how to determine vintage pyrex from new by looking at capitalization of the word "pyrex" I prefer vintage PYREX because it just feels like it's better quality. Plus, each piece has a history. I also like the design patterns on the vintage ware, although I don't think I would necessarily characterize the patterns as "funky," LOL!

  25. There seems to be ever increasing misinformation concerning what type of glass Pyrex has been manufactured from in the USA. Collectors are further being mislead by false claims that the logo indicates which glass it's made from, as well.

    There are generally two kinds of Pyrex bakeware in the US:
    BOROSILICATE glass– Used for CLEAR Pyrex from 1915 until the 1980s when they began transitioning all product to Soda Lime glass.
    SODA-LIME glass– Used for ALL opalware (white) Pyrex from the 1940s through the mid-1980’s when it was discontinued. Tinted and clear Pyrex began the transition to soda lime as early as the 1980’s if not before, as well.

    Contrary to what you may read on the internet, you can NOT guarantee what type of glass was used based on the logo alone or tint of the glass.

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