JPG wrote
OK! Plant based oils. BLO?
JPG,
I am no expert, but I think BLO has additives that make it NOT food safe. Another thing to consider is whether or not a plant based oil will go rancid. Maybe someone with more experience can comment on this part? I have had good luck with walnut oil on woodturnings, like bowls, that need to be food safe, but I can't speak to long term issues, if there are any. Supposedly walnut oil is more likely to solidify than go rancid. Assuming that is true, I wonder how other food safe type oils compare in this regard. Perhaps being open to air and drying on the wood lowers the likelihood of a particular oil going rancid? Or maybe walnut oil is special in this regard. I just know I have seen quite a few woodturners recommend walnut oil specifically for items that contact food you eat.