it’s inside the jar?
is this going post pump? 'cause I don’t see it holding vac well.
is this just for final purge after evaporating most off at rm temp with a fan?
wrap you head around this… it’s a chart of boiling points for ethanol at various vacuum depths.
it says you need to be able to control your vacuum level if you’re trying to boil (recover solvent) at a specific temp, or condense at a specific temp (ballpark 20C lower than BP) using that jar. I suggest 25.5-26" as your target. which should allow you to use ice water to condense. just use a 1/4" copper coil in your ice water bath. and a two hole rubber stopper into a vessel that will take vac.
searching for “controlled leak” should get you the poor mans version of vacuum level control. once you’ve got MOST of your solvent back, you turn up the vac level (slowly) and swap in dry ice, to catch the last of your solvent. but you should probably keep that stuff separate anyway. because it has probably changed proof.
alll this and more has been covered.