To remove saponin from quinoa, follow these steps:

1. Rinse the quinoa: Place it in a fine-mesh strainer and rinse it thoroughly under cold, running water. Use your hands to gently rub the grains together, ensuring all surfaces are washed.
2. Soak the quinoa (optional): Soak the rinsed quinoa in water for 15-30 minutes to reduce the bitter taste. This step is optional but helpful, especially if the quinoa is still slightly bitter after rinsing.
3. Agitate and rinse again: After soaking (if you do so), agitate the quinoa with your fingers while rinsing it under cold, running water. Continue rinsing until the water runs clear and there are no traces of saponin foam.
4. Drain excess water: Allow the quinoa to drain in the strainer for a few minutes to remove any excess water.
5. Dry the quinoa: Spread the rinsed and drained quinoa on a clean kitchen towel or a dry surface to remove any remaining moisture. Let it air dry for about 10-15 minutes.
6. Cook the quinoa: Once thoroughly rinsed and dried, it is ready to be cooked. Follow your favorite recipe, using the now saponin-free quinoa for a delicious and enjoyable culinary experience.
   

By following these steps, you can ensure that the saponin is effectively removed from the quinoa, leaving you with a clean, flavorful, and palatable ingredient for various dishes. Enjoy your quinoa creation without any bitterness!