Dry Ice Hash/ Kief

Just wondering how some of you guys press your dry ice hash? Do you heat it before pressing?

What're some techniques less known about?

I dont know, but in that thread porn but no porn, or whatever it was, that guy had some of the sweetest looking crystals ( I hesitate to even call it has it was so beautiful),
I want to know how he does it, deff not bubble bags.....