According to the International Olive Oil Council, olive oil is the oil consisting of a blend of refined olive oil and virgin olive oil fit for consumption as they are. It has a free acidity, expressed as oleic acid, of not more than 1 gram per 100 grams (1.0%). The cheap refined oil is mixed with more flavorful virgin oil. Some countries require a more specific designation. Most of the olive oil sold in the world falls into this category. Different blends are made, with more or less virgin oil, to achieve different tastes at different prices. Oils described as “Light” or “Extra Light” in the United States fall in this category, and are most likely made with a large proportion of refined oil.