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Question from J.K.

Hi Debra,

Thank you for all the work you do figuring all this out. I’ve seen a lot of things on plastics, but one thing I’m not sure of is; how safe is it to freeze plastic containers? I make broth and like to freeze it and have always done so in glass containers, but as you know, they can crack while unthawing. I tried freezing in some of my old washed sour cream containers that are plastic, but I ended up tossing them for fear of the plastic leaching. What about making homemade popsicles in those plastic containers, or even ice cubes? If #’s 1, 2, 4, & 5 are safe, are they safe to freeze in as well?

Thanks again for your help.

God Bless!

J.K.

Debra’s Answer

I found a webpage called Freezing Plastic Water Bottles that addressed a rumor going around that one should not freeze water in plastic bottles because it releases carcinogenic dioxin. This had been attributed to Johns Hopkins University.

The author of this webpage did some research and found…

This sounds right to me because I know that heat increases outgassing and cold inhibits outgassing. So I would say the SAFEST place to use plastic is in the freezer.

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