Yeah, my vac sealer gets used plenty as well. I double seal any food I keep for emergency storage. I really am too lazy to be rotating food every year so I store rice mixed with a few tablespoons of salt. Long, long after I die my great grandchildren will be able to tear open those bags of rice and I am betting they will be still very eatable. The only real expense is the sealing bags.

My only concern was anything leaching from the bag to the food when the hot boiling water sat in it for 10-15 minutes. From all I have been reading it does not appear to be a concern. I may switch to the double layered sealing bags for anything I plan to pour boiling water into.