White Labs container survive pressure cooking?

Will an empty White Labs yeast vial survive pressure cooking at 15 pounds of pressure?

I figure I'd ask before potentially making a big mess.

Thanks

I would imagine it would melt or at least deform the plastic vial.

I boiled a few of mine once to sanitize. They turned opaque. I imagine a pressure cook would be even worse.

Are you just looking to sanitize it? How about sanitizer, or perhaps isopropyl alcohol (rubbing alcohol) and an air dry?

No, I was looking to sterilize it for yeast slants.

I did it recently , 15 psi for 15, it shrunk, and turned kinda opaque . I didn't end up using it cause I was worried about the tube releasing some chemicals or something

Why don't you just buy some glass tubes and be done with it? They are relatively inexpensive on Amazon.

A little off topic but, someone told me the White Labs containers were actually one liter bottle blanks (preforms) that had not been formed?

They sure are, this pic is from Wikipedia:

Well, I did by glass tubes and they are working fine. But, I do have bunches of the spent tubes from White Labs lying aroung.

I'll do the test, in a couple weeks or more and report back.

Thanks

Sounds like you need to send those in for free merch!

can you post a link to where you got the glass ones off Amazon?

http://www.amazon.com/dp/B004RYF8KW/ref=cm_sw_r_udp_awd_Q2t5ub0194NT8

I got these. Definitely need a nice small inoculation loop, partly because you only need a tiny bit but mainly because the neck on this is small. I personally like the height of them but would prefer a few more mm of width. Whatever you choose, make sure you get a screw cap and Borosilicate glass so it's all autoclavable and easy to seal. I also got a test tube rack that helps tilt them to a 5 degree tilt so I can have use up most of the length of the tube and capture more cells.

Essentially, I plate, then slant, then do a stepped starter with the preferred stain from the library of slants.