Olive oil is best stored in a cool, dark place away from air.
If the bottle is left in direct sunlight or near the stove, the oil can gradually deteriorate.
This affects its flavor, aroma, and some of its natural compounds.
That is why it is important to keep the bottle tightly sealed and avoid places with large temperature fluctuations, according to Videnskab.dk.
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A kitchen cupboard may be enough
If you use olive oil frequently, a cool, dark kitchen cupboard is a good option.
The most important thing is to keep the bottle away from the oven or stove, where it can be exposed to heat.
This is especially true for extra virgin olive oil, which contains flavor compounds and antioxidants that are best preserved.
Why the refrigerator can be beneficial
Many people use only small amounts of olive oil at a time. In those cases, an opened bottle can last for several months.
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According to researcher Astrid Nilsson of the Norwegian research institute Nofima, storing olive oil in the refrigerator can therefore be beneficial, Videnskab.dk reports.
The low temperature can protect the oil from the deterioration caused by heat and oxygen.
If the olive oil becomes cloudy or solidifies in the refrigerator, there is no need for concern.
This is a completely normal reaction to cold temperatures, and the oil will become clear again once it has been left at room temperature for a while.
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