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Olive Oil Press

Olive oil has been a staple food in the Mediterranean for thousands of years, and some olive trees which are hundreds of years old still bear fruit. The process for making olive oil is relatively simple, especially as it is practiced in rural areas of Greece and Italy. Commercial olive processing is somewhat more complex, but it still relies on the same basic principle: crushing the olives to release the oil trapped inside. The process can also be used to extract oils from nuts and grains as well.

The olive harvest is the first step in making olive oil. Traditionally, olive trees were beaten by hand to release the fruit, although many processors use commercial machinery today to strip the trees. Once the olives have been picked, the clock starts ticking: they must be brought to an olive mill as soon as possible, or the acidity level will climb too high, ultimately affecting the flavor. After being brought to the mill, the olives are picked through to remove large branches and leaves, and then sent through a cleaner which removes dirt, leaves, and twigs, leaving plain olives behind.

The cleaned olives are run through a mill which turns them into a paste. Traditionally made olive oil still uses a stone grinder to mill olives, although commercial processors have turned to high volume metal grinders which can operate continuously. The resulting paste is subjected to the malaxation process, which means that it is slowly mixed so that droplets of oil begin to adhere to other droplets in the mixture.

After being mixed, the olive paste is put under pressure to extract the liquid oil along with water from the fruit, leaving the paste or pomace behind. The olive oil is separated from the water, usually in a centrifuge, and the olive oil is bottled while the water is discarded. The resulting olive oil is called virgin, because it is made through a purely mechanical technique. Olive oil with acid levels measured at less than 1% is considered “extra virgin  and usually has a particularly rich and intense flavor. Olive oil with a higher acid level (1-3%) is labeled “virgin. 

Refined olive oil is olive oil that has been chemically treated to reduce the acidity. Sometimes olives which have been allowed to sit too long before processing make a high acid olive oil, which must be refined. This reduces the value of the oil, so farmers try to avoid this whenever possible. The pomace can be further chemically processed to extract more olive oil which is usually blended with other oils or used for processes like soap making.

Company Profile More

Basic Information:

Company Name: Henan Double Elephants Machinery Co., Ltd
Business Type: Manufacturer, Business Service
(We Sell):
Single Oil Press product, Oil Press Filter, Oil Refining
Brands: HNDE
Number of Employees: 51 - 100 People 

Trade & Market

Main Markets: Global
Total Annual Sales Volume: US$5 Million - US$10 Million  
Export Percentage: 81% - 90%  
Trade Shows: Canton Fair: 15th Oct. to 19th Oct.  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
QA/QC: In House  
Number of R&D Staff: Less than 5 People  
Number of QC Staff: 5 - 10 People  
Management Certification: HACCP   ISO 9000/9001/9004/19011: 2000   Others  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  


Henan double elephants machinery company is one of famous oil press macnufacturers of China
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