I've always used food grade mineral oil on my unfinished wooden kitchen tools. To me, in a sense, the wood is still "alive" and needs to be kept alive -- Just as leather boots need oiled.
When new, I'll wet sand them (the wood, not the boots, haha) with some high grit sandpaper, let air dry overnight then, the next day, give them a good 2 day bath soaked in mineral oil in a container. Then a quick paper towel wipe down, and off to abuse for a month until I do it again. No dishwasher... Just handwashing... and a dip in boiled water or dilluted bleach every once in awhile. The mineral oil is found in any pharmacy just about, including Walmart and Walgreens, used as a laxative, as most of you know.
With my one-minute worth of Google searching, all I found was wiping with olive oil and into a preheated 350F oven on a baking sheet for a few minutes... Huh?
I have my own recipe for seasoning and reseasoning my cast iron every once in awhile with Crisco shortening and into a non preheated oven then up to 430F it goes for 1.5 hours and a slow cool down inside the oven. Twice at least for new iron cookware.
...But anyways, I'd like a "recipe" for doing something similar to wood... Basically putting a food-safe coat of plastic on/inside a wooden utensil.
I was wondering what the smoke point is for this mineral oil, and how hot I should go, along with duration? And, should I use a different oil for in the oven?
I would hang them below the racks with some metal wire -- Not put on a baking sheet.
Any ideas for temp and time? Would this even work as good as seasoning cast iron does?... After all, iron and wood are two totally different creatures, lol.