bgough
Well-Known Member
can I just put it straight into an ice bath or will this crack it?
Or "borosilicate".make sure it's actually tempered glass. Just because the shape is correct doesn't mean the glass is. I know of a lhbs near me that sells them and the glass in just regular glass.
Pyrex or tempered should be on the flask somewhere.
Unfornately, Pyrex doesn't mean anything anymore. Either look for the word borosilicate on the flask, or assume nothing about its ability to survive thermal shock. This changed in 1998 with the sale of the brand. More Here.
make sure it's actually tempered glass. Just because the shape is correct doesn't mean the glass is. I know of a lhbs near me that sells them and the glass in just regular glass.
Pyrex or tempered should be on the flask somewhere.
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