If olive oil gets cold enough, then yes, it will certainly freeze. Yet most that time, what you space seeing isn"t frozen olive oil, it"s just... It will be cold oil. Oh, and also we"ll describe why Dr Oz was completely wrong.
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At what temperature walk olive oil solidify?
Olive oil can begin to solidify at temperatures beginning around 54 degrees Fahrenheit (12 ºC). Since olive oil is a natural product, an accurate temperature is impossible to cite due to the fact that it have the right to vary a lot. Refrigerator temperatures room usually around 40 degrees Fahrenheit, therefore this is cold enough to make many olive oil begin to solidify. Placed olive oil in a freezer the is in ~ the encourage temperature of 0 levels F and you will certainly end up through an olive oil ice cream cube; the actual freezing point of olive oil is reported to be approximately 10 ºF (more about possible reasons for freezing olive oil later). Occasionally olive oil will be subjected to actual freeze temperatures accidentally, however it"s more common because that it to encounter refrigerator-ish temperature (in trucking throughout the winter, because that example).
So what are those chunky bits in cold olive oil?
When olive oil gets cold, few of the triacylglycerols (three fat acids on a glycerol "backbone") start to solidify. Over there are also naturally developing waxes in olive oil the come indigenous the skin that the olive that harden at low temperatures. As olive oil cools, this things cause cloudiness and/or kind crystals, (aka chunky bits). The temperature as soon as these crystals start to type will vary tremendously relying on the separation, personal, instance olive oil and also its chemistry. This is impacted by the olive variety, harvest maturity, cultivation climate and also other factors.
What"s through Dr Oz?
A few years earlier Dr. Oz asserted that the was possible to recognize the high quality of olive oil by placing it in the fridge. If that solidified, walk the theory, it"s extra virgin olive oil. If it stays liquid, it"s not extra virgin. Unfortunately, that is utterly wrong. The points that reason olive oil come solidify space not indicative of extra virgin quality. The photo below graphically illustrates just how wrong this "fridge test" is.
The olive oil in this jug is 100% refined olive oil that was in a refrigerator in ~ 40 levels F. Over there is no extra virgin olive oil in it in ~ all. Together you have the right to see, the olive oil in the jug is completely solid. Indicator of olive oil class or quality? Nope.
So how did Dr Oz obtain this so wrong? Possibly because of the practice known as "winterization" for cooking oils. This process involves slowly cooling one oil till those triacylglyerols and waxes start to crystalize and then filtering or centrifuging castle out. Canola and also other common cooking oils and refined olive oil are often winterized. The process is important for vegetable oil that will end up in commercial mayonnaise, for example, because the crystallizing due to cold have the right to break the emulsion and also cause the mayo to separate. This winterizing process is what enables some oils—including some olive oils—to remain liquid and also clear at refrigerator temperatures.
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Keeping olive oil in the refrigerator
Keeping olive oil in the refrigerator is usually not recommended. First, it"s inconvenient. In stimulate to usage the oil, you have to put it in ~ room temperature for quite a while until the chunky bits heat up and also disappear—which castle will. This is good to know if you ever have an by chance chilled bottle of olive oil: leave it at room temperature and also it will liquify. The quicker alternate is to placed the party of olive oil in a food of warmth water, however we know that our olive oil will preserve its quality far better if it"s preserved cool, so the is not recommended. Second, the repetitive warming and also cooling the the bottle can cause condensation inside, and you never ever want humidity in your olive oil. So for storage, cellar temperatures in the high 50s/low 60s ºF are ideal.
All this said, oxidation does slow-moving with cooler temperatures so refrigeration will expand the life that the oil. So if you have some fabulous extra virgin olive oil in your cupboard and you are going on vacation for a month in August, sticking that bottle in the fridge would certainly be a an excellent idea. When you obtain home you"ll take it the party out, let it sit at room temperature because that a while, and also slosh it right into your salad dressing. A ascendancy of thumb: if you room worrying that much around keeping a bottle of olive oil fresh, you most likely need to buy smaller bottles and/or ramp up your consumption!
Can i freeze olive oil?
So to come ago to wherein we started, what are the factors you can want to freeze olive oil? The most common reason is to preserve fresh herbs in a convenient form. By mix olive oil v those chopped new herbs you can make frozen cubes to toss into your dishes together needed—a homemade convenience food! If your freezer is at the correct temperature of 0 degrees F, you will effortlessly finish up through herby olive oil ice cream cubes that have the right to be unmolded and kept in freezer bags.
There"s an additional reason you can play about with freeze olive oil. In a little informal experiment, the writer froze a freshly-made olio nuovo to see if it maintained its distinct character. Olio nuovo ("new oil") is distinctive in flavor, having high pepperiness, and a very bright, eco-friendly olive character. Normally the shelf life the these products is less than 6 months. An similar sample of oil was put in cool, dark cellar problems (~60 ºF). After 6 months the two samples to be presented blind to a trained taste panel. Both oil were uncovered to it is in extra virgin quality, but the frozen sample score much higher for freshness and also green characteristics. Interestingly, after just a couple of weeks, the difference in flavor in between the 2 samples had disappeared. So if you want to experiment with freezing super-fresh olio nuovo to enjoy later, placed it right into an ice cream cube tray. Then you can thaw little quantities quickly and easily to add harvest-fresh smell to her meal anytime!