Re:Most olive oils sold in the United States are adulterated...
by mandelbulb on Saturday August 13, 2016 @02:23PM
(#12282464)
Rather, regarding the issue of chemical quality that information doesn't help at all.
You need proper chemical testing and a proper definition of the quality of taste.
There are already a lot of tested brands so you could add a section to collect that data, although it's usually behind paywalls.
http://world.openfoodfacts.org/category/olive-oils