Yes, olive oil ideally should be stored in a dark bottle. Light, especially ultraviolet (UV) rays, significantly degrades olive oil, affecting its flavor, aroma, and quality. Dark-colored bottles, like the dark green bottles often used, help filter out these damaging UV rays, extending the oil's shelf life and preserving its beneficial properties. While storing the oil in a cool, dark place is beneficial regardless of the bottle type, a dark bottle offers added protection.
Why Dark Bottles are Preferred for Olive Oil Storage:
- UV Protection: UV light accelerates the oxidation process, leading to rancidity and a loss of flavor and aroma in olive oil. Dark bottles act as a barrier against this damage. (Source: California Olive Ranch, Old Town Oil)
- Extended Shelf Life: By minimizing light exposure, the oil's quality is maintained for a longer period. (Source: Seloolive)
- Preservation of Nutrients: Olive oil contains beneficial compounds that are sensitive to light. Dark bottles help protect these nutrients. (Source: Old Town Oil)
Alternative Storage Methods:
While dark glass bottles are optimal, storing olive oil in a cool, dark place, away from direct sunlight, is also crucial. Using a stainless steel container can also offer some protection from light. (Source: The Kitchn)
Note that even dark glass bottles do not provide complete protection against oxidation, which is a natural process. However, they significantly reduce the degradation caused by light exposure. (Source: Olive Oil Times)
A transparent bottle is acceptable only if the olive oil is stored in a completely dark environment. Light exposure, regardless of container type, negatively impacts quality. (Source: Reddit - AskCulinary)
