What is the shelf life of truffle oil?
Due to its delicate nature truffle oil will retain its character for at least several months. It is important to keep it cool. That’s because the gases go into a semi-liquid state when cold, and keeping the oil cold also retards rancidity in the olive oil itself. To be safe keep it in the refrigerator when not being used. The oil will solidify and appear chalky in color. As the oil warms it will return to its normal clear appearance. All in all it is best to think of the oil the way you do fresh produce. Use it or lose it. That said I have had some bottles retain their character for a year, but cannot guarantee it.
