I can tell you I did read somewhere if you try this with dried wood i.e kiln dried it doesn't work.The wood has to be fresh of the tree seemingly, anyway I also was told a can of beer in a plastic bag get's things off to a good start.It might be worth trying a brew or concoction of your own making adding a little beer and see.Their is plenty of information out there if you seek.So have fun and keep us informed as I too would like to try this regards Alistair