Safe? Yes. Curing is the key to a smooth smoke not the magical flush.
What do 'smooth' and flavorful have to do with each other? Pine, cedar, sugar, spice, herbal, floral etc. Wtf does harsh even mean?
These people whose extent of weed flavor descriptors = 'harsh' and 'smooth' are talking out of there asses. The presence of nutes virtually replaces the presence of weed flavors. Youre not curing anything if you've got nutes in the plant, youre just waiting for the taste of lab chemicals to fade and calling it curing.
If you cant come back to a jar after 4 months and say WOAH THIS SHIT TASTE LIKE CEDAR TREE CANDY!! If all you gotta say is "its smoother than harsh" then you're smoking tainted unflushed bullshit,and pretending to understand why these strains are bred in the first place (100% for their flavors, not for smoothness, absence of flavor, absence of lung expansion or whatever the hydro growers think the breeders were pursuing.)
What all these posts really mean is "I've been smoking poison for so long I'm not goin to let anyone tell me now ". Cannabis is a hyper accumulator. Grow in some cadmium and tell us flushing is a myth. You might get skunky weed for the first time since cadmium pushes thiol production in plants! It's koo tho, Cadmium Coroner Kush #1 has a nice ring to it