Some peeps at UC Davis published a report on olive oil quality of various brands back in 2010: http://olivecenter.ucdavis.edu/research/files/oliveoilfinal07141

Some peeps at UC Davis published a report on olive oil quality of various brands back in 2010: http://olivecenter.ucdavis.edu/research/files/oliveoilfinal071410updated.pdf http://olivecenter.ucdavis.edu/research/files/oliveoilfinal0... More here: http://olivecenter.ucdavis.edu/research/reports http://olivecenter.ucdavis.edu/research/reports