According to the facebook page it is fully sealed and made from borosilicate. Maybe you should get educated before you blast things? I was just asking a question, not looking for your personal attitude problems.
I currently use the thermos method, but I feel that the butane is just too cold to do a really good job stripping everything-even with a long soak(45 minutes plus however long it takes to empty 5 cans). Room temp or even just chilled butane would work so much better, and require a much shorter soak time(no one really wants green bho).