Gunther,

We use them in my daughter's lunch boxes for school and they don't way what
the contents is just that they are safe and non-toxic.

Tom L.L.
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"Gunther" wrote in message
t...
Top posting cuz you started it:

I have no idea, but they're much less
likely to leak than ziplock bags.
These are sturdy, and in years of use (in my
beer coolers) none has ever leaked. Since they're
sold for use around food, I'm sure the content is
non-toxic to humans (which says little about toxicity
to fish, I know).

In article , dr-
says...
if they spring a leak, what is in those blue things?

Gunther wrote:
I've semi-successfully used those blue plastic freezer things
that you pack food with.


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