At Auction, the cooking tools, as well as the Cauldron and the Tincturing Kit (all breakable tools), do not show whether they are new or used, and if used, how much wear they have suffered. This is not a big deal for the cheaper tools, but yesterday I bought a Cauldron, thinking to donate it, and was surprised to receive only 290 favor rather than 350. (Yes I was at full mood.)
Even if it's not possible to display a usage bar, it would be great if there were at least some indication that a tool is not in new condition.