How do I find items with the right level to salvage particular ingredients?
There are four tiers of crafting materials, one for each difficulty level. At what item level do salvaged items start producing materials of a higher tier?
I've seen people claim you start seeing Nightmare materials at level 30 and Hell materials at level 50, but I've found evidence that Nightmare materials show up as early as level 27, but not for every item type.
What's the real answer here? Also, what about Hell and Inferno?