Most hash, at least the kind that I prepare, gives of a peculiar smell, more closely related to incense than weed. However, as most have already stated, I try to go about 2/3 weed and 1/3 hash on any given bowl, gives a really nice balance. The only time I smoke hash sans marijuana is when me and a couple of buddies break out the hookah, we'll typically spend at least a day if not more working on a brick.