Definition: Cold-pressed oils are oils made by first grinding nuts, seeds, fruits or vegetables (depending on the oil being made) into a paste. Then an oil stone or other tool is used to press the paste which forces the oil to separate out. Many labels use the term cold-pressed, but they aren't all considered raw and suitable for a truly 100% raw food diet. To be raw, the oil cannot be heated above 115°F. Some manufacturers will heat up the paste in order to extract more oil. This alters not only the nutritional value of the food, but also the color and flavor. The only way to know for sure if an oil is truly raw is to contact the manufacturer directly.
You can also do some online research to find companies with strict raw regulations and effective investigative practices. Essential Living Foods is one trusted source and a Greek company called Eliki Olive Oil produces an authentic raw oil.
Note: Another common industry term is expeller-pressed. These expeller-pressed oils are extracted by exposing the food to extreme pressure. This also may or may not involve heat. Stick to your trusted brands in order to ensure that the oil is raw. Most raw foodists stick to oils labeled "cold-pressed" whether it's cold-pressed olive oil, flax oil, coconut oil or sunflower oil.