Olive presses and mills explanation


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Mill and Press Facts
How Olives are turned into oil

Steps to olive oil making once you've grown and picked the olives:

5. Separating the Oil From the Water

Centrifugal Olive Oil Separator
	Like a cream separator in a dairy, the liquid is spun which separates the heavier water from the oil. Vertical centrifuges with perforated conical discs can act as either: purifier: takes a little water from mostly oil skimmer: takes a little oil from a lot of water (if you want to scavenge the wastewater) clarifier: takes a little solid from a liquid phase (removes particles from oil before final filtering)
Advantages quick continuous process more efficient - higher yield Disadvantages expensive energy intensive

Gravity Olive Oil Decanter

The oil and water is put into tanks where they separate by gravity

Advantages

inexpensive
limited labor

Disadvantages

time consuming
some wasted oil if separation is not complete
bulky

6. Processing the Olive Oil


Refining	Steam, alkali	purpose is to reduce acidity and improve flavor
bleaching	diatomaceous earth's, activated carbon or synthetic silicas.	reduces chlorophyll, carotenoids, residual fatty acid salts and pesticides by using
deodorization	activated carbon	reduces odors