I googled “olive oil refrigerator test” and got lots of results from credible looking sources saying it’s a myth, or at best unreliable. I chose the article at the California Olive Ranch site because California Olive Ranch was mentioned several times upthread as a maker of high quality EVOO.
Fair enough ‘ you did more research than I first surmised. Going to have 5o do some on my own to check for other testing methods, and thank you.