One last thing: ground turmeric stains the hell out of a Vitamix pitcher. I only just discovered this, because I’ve only recently swapped over to a Vitamix blender from my old-and-trusty inexpensive Ninja blender. For whatever reason, I could leave turmeric spiked soups or smoothies in the Ninja for ages without staining.
But the Vitamix pitcher stains like a mofo in minutes. So you can either blend up the soup right in the Dutch oven with an immersion blender, OR blend the soup together without the turmeric in the Vitamix. Then you’ll have to return the soup to the pan, add the ground turmeric and give it a a good stir until the soup combines nicely.