Extra virgin olive oils made in hot climates have not had a great reputation. Oils from Sicily and Puglia in Italy and Andalusia, Spain, and other Mediterranean regions, where harvest temperatures are often searing, are frequently dismissed by exacting consumers. And with good reason: Far too many suffer from a major defect called fustiness.
What does fustiness taste like? I know it on my palate, but I can’t always summon words to describe it. To me, it tastes like badly preserved black olives and smells like moldy hay in a neglected corner of the barn. (But few people recognize that aroma in this day and age.) Fusty oils lack the complex bitterness, pungency and rich fruitiness that characterize good, fresh, well-made oil. And they usually leave an unpleasant, greasy feeling in your mouth.
The cause of fustiness: READ FULL ARTICLE HERE (ZESTY DAILY)