Take cooking oil. Some types are better for high-heat cooking; others are ruined by high temperatures, losing their delicate flavors and even turning rancid. What should you use and when? The smoke point is the temperature at which oil will smoke and break down into free fatty acids.
What are High-Polyphenol Olive Oils? - eushopper.info
In the past few decades, extra-virgin olive oil has gone from relative obscurity to mainstream popularity. Its health benefits are widely touted, it's called for in countless recipes, and many are willing to shell out top dollar for what they believe is the healthiest, highest quality oil. Unfortunately, while the health benefits and superior taste of true extra-virgin olive oil are real, it's recently been revealed that much of what is sold as "extra-virgin" in the U. Many shoppers might consider the fact that an oil is imported from Italy to be proof enough of its quality, but sadly, that is not the case. Italy exports more olive oil than it produces, a discrepancy which raises the question of what is going on to make that possible. It's come to light that many producers in Italy, the world's biggest importer of olive oil, have been cutting their oil with refined olive oil lower-quality oil that has been treated with chemicals to mask imperfections imported from Spain, Greece, or other countries, or even with soybean or other cheap oils, while others add flavors and colorants to cheap vegetable oil to make it resemble olive oil, and then sell this doctored oil as "extra-virgin olive oil" for export.
Check out some of the most expensive olive oils available today. One of the difficulties in buying olive oil is deciphering the terminology. All olive oil is made by using machines to crush the olives.
Why is this? So how can you choose the best extra virgin olive oil? Premium olive oil producers will usually put the harvest date on the back of their bottle, while larger producers will simply put the expiration date, which is usually a couple years after harvest. Seeking out single varietals not only increases your chance of finding more quality oil by producers committed to making good EVOO, but it allows you to experience different flavors and to mix and match oils according to different dishes.