And they do go some funny colours.... I was using my GB mini to do veg the other night and after the onions my mini was nice shades of electric blue fading to black.... It went a bluey/purpley colour once when I was carving wood, but i can't remember the wood.... that looked niceMore importantly using it and the staining it picks up from the wood ect will actually help protect the metal from moisture. And give the axe character.
Ed