Discover practical kitchen tests to identify pure cold-pressed oils, distinguishing them from adulterated or refined blends. The water dispersion, fridge, and gentle heat tests reveal a pure oil's ...

Before we pick a winner, it’s important to understand what these terms even mean. Olive oil comes from pressing olives, but the method of extraction and level of processing make all the difference.

Olive oil is a major component of the Mediterranean diet, which scientists say is good for heart health. It's often used in salad dressings, marinades, and sauces. A drizzle of olive oil can also ...