Yes, you can use a food processor as a blender. However, there are some important things to keep in mind. First, the blades on a food processor are not as sharp as those on a blender, so you'll need to use more care when blending. Second, a food processor doesn't have the same power as a blender, so it may take longer to achieve the desired consistency. Finally, it's important to remember that a food processor will not completely pulverize ingredients like a blender can, so your results may be slightly less smooth. Overall, using a food processor as a blender is possible, but it requires some extra care and attention.