Top positive review
One person found this helpful
If you are on a tight budget buy these.
on February 10, 2015
I read the reviews prior to buying this and I was hesitant to purchase this at first.
Pyrex bowls were originally made of borosilicate glass which could resist thermal shock better.
But Pyrex switched to cheaper soda-lime glass, which is cheaper and more abundant.
Some reviews said their bowls shattered because of exposure to drastic heat changes.
I bought these bowls after much thought. Originally I was going to purchase the SIMAX borosilicate glass mixing bowls, but they were almost 3 times as expensive and out of my budget.
Pyrex has said these bowls were made of heat tempered glass which could withstand heat just as well as borosilicate glass, and another upside to these bowls is that it is more durable, as it made of thicker glass.
However, I am not 100% convinced as I have seen some pictures of shattered Pyrex ovenware. If you want a good lifelong investment I suggest buying a higher quality glass made of borosilicate glass.
Overall, I recommend it because of the affordable price and I have used it twice as a double boiler without any cracks forming yet.