Is there any water inside your metal

Hello guys i have heard that a lot of people thinks there is water inside your metal, so that's why they used to say "get that water out of your metall" I personally don't think that there is any water inside your metal, but people take it all wrong becouse they believe while welding or cutting there is water appears on the surface Herevim going to discuss about the reason behind this , as we know for cutting we uses gases for eg. LPG + Oxygen and while heating they do collide as it takes a little time to evaporates that . Thats why the water appears so next time you need not to be worried about this. To prove this next time you can try to cut the ice with a gas cutter , it will help you to agree with me....!!