i used to have a volcano before i sold it, but yeah definitely keep your leftovers, you can either keep repacking it in the vape and just vape it at higher temps

or when you run out of weed, just roll up a blunt of it between you and a buddy and you'll be feeling decent. just make sure you got something to wash away that taste.

If you have weed, I wouldn't smoke it though, because it does taste a lil dirty, though I've heard some say its similar to chocolate (doesn't get me high enough to think that).