Yes. That's what I did, anyway, until my IC got damaged. I actually use a chillzilla CFC now because I have one, but I do recirc that the 20 min of boil with pump ala the JZ way. Works just the same, except I always PBW the CFC after every brew session. Rarely did anything with IC except hose it off, though I did do an acid soak a few times to remove patina from copper.