Swim obviously can't read. Try again reading the posts regarding this issue from the last days, there's no talk about refluxing, just heating to 120 to 160 C for at least 6 to 12 hours with 2 to 10 % KOH added to your distilled safrole. And then you don't get that ugly tar, you still get a blackish solution ofcourse, but no tar left after distilling your isosafrole out. LT/
WISDOMwillWIN