I used to own several but after seeing how bags and / or jar lose their seal after a time I looked at commercial machines. (cookeatpaleo.com)
The crew is currently working on 3 - and 10 - meter - long prototypes, although the goal is a 60 - meter [200 - foot] commercial machine. (discovermagazine.com)
While commercial machines might pop up at select high - level training facilities, locating one near you might be difficult. (health.com)