A wrote:

> What kind of containers would withstand going from freezer to stovetop ?
> Thanks

The Foodsaver (and clones I expect) advertises that one can take frozen food
in their little baggies and place in boiling water to heat, or vented and
carefully heated in the microwave. One can also freeze food in any kind of
container (lined with plastic?) and decant to the foodsaver bags when stiff
enuf not to slop around during the vacuum process. This might solve your
problem with containers after all.
Edrena