Impulse Sealer

I have a vacuum sealer and I want to cook rice seal it and take it on extended pack trips where there will be no refrigeration. This will help cut down on fuel.
Trader Joes, Kashi, Uncle Bens, etc… sell bags of cooked rice this way. Does anyone know if this is safe to do it yourself or are they adding a preservative?
I would also like to do this with cooked lentils and beans? any suggestions.
How safe is it to then boil bags to reheat. Is there BPA in the plastic?
If I can reheat in plastic, it reduces any clean up and gives me drinkable water or hot tea! Again reducing fuel.
Thank you for an tips or suggestion.

we butcher our own chickens but we eat them up pretty fast and need a good way with out a vaccum sealer.
would wrapping waxpaper around the chicken then around the waxpaper wrap it in butchers paper keep it from freezer burning? or wrapping it in wax paper and putting it into freezer guard ziploc bags work better? we are worried about freezer burn. any ideas?

Smartphone Software

I am wondering if a vacuum sealer like the Food Saver or the Rival Seal-a-Meal can be used to seal regular plastic bags. I don’t necessarily need the air to be vacuumed out but I want to be able to reseal stuff like pepperoni or hotdogs or stuff from the freezer like chicken fingers etc (in their original packaging).
Has anyone tried this? I would not imagine it would not damage the sealer (as long as the plastic is thick enough).

i thought of that when we freeze our chickens & are skinned so why not use a cheaper bag or do you have to use those poly bags?