Unfiltered olive oil

Source: Wikipedia, the free encyclopedia.

Unfiltered

decanting and before final filtration. The oil is either filtered or stored in tanks to settle for weeks or months to allow sediments to be separated from the oil; this is known as racking.[1][2] Once opened, unfiltered olive oil has a shorter life because the olive particles continue to ferment in the bottle.[3]

Application

Although most commercially available olive oil in the world market is filtered, unfiltered olive oil is gaining increasing popularity amongst olive oil small scale producers, some chefs, and people who prefer a more "natural" aesthetic. They believe that this oil has superior sensory characteristics compared to filtered olive oil, because it is a less processed product.

Nature of cloudiness

Unfiltered olive has aspects of both a

yeasts can accelerate the rate of degradation of the quality of the oil and increase the oil free acidity. The overall effect of filtration on olive oil durability is controversial, with different studies coming to different conclusions, and likely also depends on the specific systems used to filter the oil.[4]

The main phenolics found in olive oil are

Natural cloudiness versus low-temperature cloudiness

Olive oil cloudiness resulting from sediments discussed in this article is different from the characteristic cloudiness of olive oil due to storage at low temperatures [REF]. This type of cloudiness is the result of congealing of triglycerides. When these oils are returned to room temperature, they become again transparent. Unfiltered olive oil has a cloudy appearance that can persist months after the oil has been returned to room temperature.

References

  1. ^ McManus, Lisa (November 29, 2012). "It's Time for Olio Nuovo ("New Oil"), the Beaujolais Nouveau of Olive Oil". America's Test Kitchen. Archived from the original on Oct 29, 2013. Retrieved 6 August 2013.
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  3. ^ "Is unfiltered olive oil healthier?". Blog.aboutoliveoil.org. Retrieved 15 September 2018.
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Further reading