Refined rapeseed oil is a processed form of crude rapeseed oil. The refining process involves removing impurities and unwanted components to improve the oil's color, odor, and flavor. This makes it more suitable for culinary uses, such as cooking and seasoning. Refined rapeseed oil is high in alpha-linolenic acid (omega-3) and is known for its nutritional benefits, including a good balance of omega-3 and omega-6 fatty acids. It's also commonly used in food production and as an ingredient in many food products due to its mild flavor and high smoke point.