Great skill. And at least he’s not risking damage to his safety glasses. Keep them in their case and on the shelf, out of harm’s way.Really mind blowing to me that someone of the skill set and experience is doing all this without ever wearing safety glasses and protecting his eyes - without them he would no longer be able to do this trade.I know very little about this process but was totally fasinated by the work. Can you tell what the white powdery substance is that is sprinkled on the hot metal during the early phase of the process and what is its purpose.