Rancid Olive Oil Taste. Olive oil is mostly monounsaturated fat. Fusty this is common defect that appears when the olives are gathered in piles and may cause rancid this is the most common defect, it is basically olive oil gone bad and you may have come across this taste when you eat old nuts or stale. Olive oil tastes best when it is fresh.
If your oil has a buttery taste, then it's probably rancid.
Olive oil is also highly perishable, making it vulnerable to oxidation when it's if your olive oil tastes dusty or musty, it's probably because it was made from moldy olives, another occasional olive oil defect. Olive oil can offer medicinal qualities but you need to know how to spot the good (and fake) products. Olive oil is mostly monounsaturated fat. It's lighter in taste and color, not calories, than straight evoo. The ideal temperature for storing olive oil is 57. Iyer said chronic stomach problems forced her to examine her diet closely; Real olive oil has complex flavors, which is what makes it an essential part of so many italian dishes. All olive oil goes bad at some point no matter what you do to prevent rancidity.
