When I juice with the steamer, I make sure I have hot, sterile jars and lids ready and waiting and just drain off the juice from the steamer into the jars, then lid them and let them seal as they cool. I haven't steam bathed them afterwards - only had maybe 1 jar not fully seal and grow gunk over the last year or so.
Maybe I ought to steam process them, but with sterile (steamed) juice, going into sterile jars with sterile lids, all hot -- treating them like jelly and just letting them self seal seems to be enough.
Just my 2 cents, open to having corrective feedback if this is way wrong way to do this!
(Mrs.) Pelican