Nothing says you can't reuse their stuff. If you only buy the jars from a single company, you're essentially buying their can as well. What factories do and wha

Nothing says you can't reuse their stuff. If you only buy the jars from a single company, you're essentially buying their can as well. What factories do and what you can do with that same jar makes no difference. The sealing process may be a tad different but at the end of the day, you're still sucking out all the air creating a vacuum.