At the COR… America's Largest Grower & Processor of Olive Oil
wide view of the row of olive trees
Although there are over 300 small artisan olive oil growers and producers in California, California Olive Ranch (COR) is by far the largest and most innovative in the country. The 700-acre ranch is headquartered in Oroville, a Northern California agricultural community located near the Sierra Nevada foothills. With over 300,000 trees, COR's fall harvest will yield America's most abundant crop of olives grown exclusively for the creation of premium olive oil.



At the COR… A Unique Growing Method

view of the row of dwarf olive treesEarly in 1999, California Olive Ranch (COR) planted two highly prized Spanish olive varietals - Arbequina and Arbosana. These nursery-grown plants were not the normal size for olive trees. They were semi-dwarf olive trees with the same height of hearty winegrape vines. Besides using Mediterranean olive varietals, COR also imported a relatively new, innovative farming method from Spain called "High Density Plantings" (HDPs).

Using this system, COR planted 670 semi-dwarf olive trees per acre, versus the traditional method of 120 trees per acre. Besides increasing annual yields per acre, COR has also been able to harvest their first crop much earlier. Regular olive trees usually begin producing fruit after five to seven years, while COR's semi-dwarf trees produce their first fruit after only two years of growth.



At the COR… High Density Harvesting

The traditional way to harvest olives is by handpicking each fruit, then allowing this ripe fruit to sit in the sun during the collection process. Because of California Olive Ranch's (COR) use of dwarf olive trees, mechanical harvesting machines are used to rapidly pick the fruit and deliver it to the processing facility - all within minutes instead of hours or days like conventional methods.

COR's technologically-advanced planting and harvesting methods help to solve the high cost issues inherent with hand harvesting, and also ensure the quality, food safety, and freshness of its extra virgin olive oil.

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close up of extra virgin olive oil
At the COR… Careful Crushing & Clarification

The outstanding quality of California Olive Ranch's (COR) extra virgin olive oil is achieved by carefully crushing the olives to extract the first juice. This raw olive juice is then smoothed and clarified by the natural procedure of decanting. This process ensures that all the fruit's rich flavor, healthy vitamins and antioxidants are kept at their very best.




At the COR… California's Most Advanced Olive Oil Processing Facility

stainless steel tanksCalifornia Olive Ranch's (COR) state of the art processing facility is located in the middle of our 700-acre orchard. As California's largest olive oil mill, it's designed to produce an abundant supply of fresh, flavorful, aromatic extra virgin olive oil.

To ensure the very purest quality and genuine freshness, 12 stainless steel storage tanks can hold over 115,000 gallons of COR's just-pressed oil. These tanks are nitrogen-injected to prevent rancidity and other contaminants. To preserve the orchard-fresh taste and integrity of the natural oil, COR's storage tanks are maintained and monitored in a strictly regulated, climate-controlled environment.


At the COR… From Branch to Bottle Quality


testing the extra virgin olive oilIn order to be called an "estate-grown" olive oil, the final product must be grown, harvested and processed on the same farm or estate. California Olive Ranch's (COR) staff is always in total control of its premium olive oil from the first bud on a tree branch to the last bottle on our high-speed processing line. Rigid quality control, constant product testing, and periodic tastings all help to enhance the exceptional taste of COR's Arbequina and Arbosana gourmet olive oils.




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