What media to use for blasting a machine?

[SIGNGUY]

I am testing out a new guy to do some painting for me and he never has done a pop machine yet. I am testing him on an old westinghouse cooler first. But he had wondered what the other guys use as a medium for stripping a machine, sand,bead or Shells? SO the question is what type of medium is best for blasting the paint off the machine without it heating up and warping? thanks

[sodaworks]

Everything small enough goes into my bead blasting cabinet. Everything else gets sandblasted with 30 grit sand. This works well for me. '>