Uncraftingtable and Unstable Ingot

Just a tip I saw from a fellow player:

If you are adventuring and finding alot of Builders Wand you can with an uncraftingtable uncraft it and get the unstable ingot from it. So with many Builders Wands you can get many unstable ingots and craft the sword etc with them. And the funny thing is that they will not explode

I dont know if its a bug or what but at last something to use all my Builders Wand for.