How Olive Oil Is Made

Olive oil is directly cold-pressed from fresh olive fruits without heating or chemical treatment, retaining natural nutrients. Therefore, olive oil is considered to be the most suitable oil for human nutrition among the oils discovered so far.

Olive oil is pressed from the fresh fruits of olives using appropriate mechanical methods. Generally, the oil is obtained by cold pressing. High-quality virgin olive oil is the best olive oil, and its processing is carried out at low temperature (<27℃).

Olive oil processing process:（cleaning） → crushing → pressing → separation of oil-water mixture → primary refined oil

How is olive oil refined?

Not all olive oil is refined; in fact, olive oil is the only vegetable oil that is edible without being refined. Higher quality extra virgin olive oil already has a great taste and aroma, so no further processing is required before bottling.

However, some lower quality olive oils require further processing to be suitable for human consumption. Typically these additional refining processes are used to remove bitterness and reduce acidity; this gives the resulting olive oil a mild, smooth flavor and lighter color. Keep in mind that refining methods do break down the polyphenols and other beneficial compounds in the olive oil itself.

There are many ways to refine olive oil, including degumming, neutralizing, bleaching, winterizing and deodorizing. Different methods can be mixed and matched to obtain the desired results. Here's what's involved in each refining process:

1.Degumming: This process involves treating the oil with hot water, steam, or water mixed with acid and then spinning it in a centrifuge. The power of centrifuge separates out colloidal phospholipids and beneficial polyphenols.

2.Neutralization: Using caustic soda, lye or other inorganic compounds to remove color and free fatty acids from olive oil.

3.Bleaching: An acid bleaching process is used to lighten the oil by heating the oil to 212 degrees Fahrenheit and then removing the pigments.

4.Winterization: As the name suggests, this process involves rapidly cooling the olive oil until it solidifies. Solid materials such as wax are then filtered out of the oil.

5.Deodorization: To remove undesirable tastes and odors, heat the oil to 300 to 500 degrees Fahrenheit and then use steam to remove them. Due to the use of high temperatures, other beneficial compounds such as polyphenols also begin to break down, which reduces the health benefits of olive oil.

Many olive oil refining processes leave the oil with almost no color or flavor. Sometimes the refined oil may be blended with a small amount of extra virgin olive oil to add some color and flavor before bottling.

Main Equipment

1.The production line equipment configuration plan is designed and customized according to the customer's production quality requirements and the specific conditions of the workshop.

2.The equipment layout of the production line can be designed according to the layout of the customer's actual factory, and the equipment layout diagram can be provided.

Ruian Every Machinery (MCRAYONE) is located in Zhejiang province, China. Our annual production capacity of oil press machines and related machines is around 10,000 sets. These machines have sold to all over the world, such as South Africa, Nigeria, America, India and so on. Thanks to our experience in the oil press industry (more than 40 years ), we know the demands and best-selling models of each market, so we can provide the most suitable machines to our customers.

We have an experienced engineer team, a professional Research and Design department, and a perfect Quality Control System. All the parts are made by our own factory and the quality can be guaranteed. In addition, we provide a quality warranty for one year.

Our business involves in small-sized oil pressing series, oil engineering designing, equipment manufacturing and installing, project contracting, technical service and so on. Moreover, we have important partnerships with many large Chinese companies, such as China Oil and Food Import and Export Corporation. We are their designated foreign trade exporter and their supplier for small oil presses.

Our goal is to establish a long-term relationships with our customers, based on providing quality machines at a reasonable cost and maximize the customer returns with comprehensive service.

In the course of our company's decades of development, we have obtained multiple official certificates, such as :

• ISO-9001 international quality system certification
• CE certificate
• China's AAA credit enterprises
• Certification for honoring contracts and keeping promises
• Certificate of Integrity management demonstration unit
• Certificate of Quality Service Integrity Unit
• Enterprise Credit Rating Certificate

Our company has grown into one of the leading oil press manufacturers in China, and our popularity has spread abroad. We welcoming all kinds of orders.