Refined safflower oil that has been winterized is a processed form of safflower oil that has undergone a specific treatment to remove waxes and other high-melting components. This process, known as winterization, involves chilling the oil to solidify the waxes, which are then filtered out. The result is an oil that remains clear and does not solidify at lower temperatures.

Therefore it is more suitable for use in food products where clarity and stability are desired. Winterized oils are often preferred in salad dressings, spreads, and other products where a clear appearance is important.