heating the crystal actually creates a chemical reaction. what you have here isn't hash.. merely a compressed ball of crystal.. when you add heat.. or an open flame.. the crystal changes into a different compound where it becomes much more like hash.. and not just a ball of compressed crystal

on the left is homemade pure crystal bubble hash. on the right is bought hash from a buddy of mine.
BobBong Reviewed by BobBong on . MAKE YOUR OWN HASH.......... HERES 1 WAY I DO MINE......... 1 COLLECT CRYSTALS 2 PUT IN BAGGIE 3 PRESS IN PALM OF HAND 4 A READY TO SMOKE BALL OF HASH! Rating: 5