I am building some new QS white oak kitchen cabinet doors and am hoping for some insight into finishes. The previous set of cabinet doors were damaged over the years by an under cabinet mounted toaster oven and coffee maker. So, one area was damaged by heat (discoloration of the finish) , and another was damaged by steam/humidity (finish broke down, peeled off, and the wood started drying out and splitting). What finishes would you recommend that might minimize discoloration by heat and penetration of steam into the wood? Yes, one right answer would be to not mount the appliances under the cabinets, but that isn't going to happen.
BTW, the damage occurred over about 15 years, so I am resigned to not being able to absolutely _prevent_ this from happening again.