I broke down and purchased a liter of Bertolli Extra Virgin. I know they've had trouble in the past; being accused of selling adulterated oil. However I had hoped that the problem was solved. The stuff I have now has been in the fridge for 4 days. It has still not become solid. Most OO's I purchase become solid in the cooler. I'm wondering, is this oil still being trifled with? Thoughts?