Mineral Oil Egg Storage. At the tent, when up there we have a generator that runs the fridge, but its set up to be totally off grid, with gas lights or candles, wood heat and living off the land. With no refrigeration there are things I can not have. We have learned to dehydrate to have food in the winter months and to can butter so we need no refrigeration. In this experiment we are coating eggs in mineral oil to preserve them. They are sitting on the counter up there right now. Will it work?