For thousands of years Olive Oil has been extracted using large stone wheels, harvesting every drop of oil, flavor and nutrients that go into this bottle of oil. My Brother’s Olive Oil is Unfiltered, First Cold Extracted, 100% Extra Virgin Olive Oil.M.B.O.O. was introduced in the U.S. in 1991 by Isola’s founder to support his brother’s olive farm in Italy. Traditionally grown, hand-picked, stone milled and cold extracted. M.B.O.O. is high in heart-healthy polyphenols extracted from Coratina & Ogliarola Olives.