Put the quinoa seeds into a fine-mesh strainer and rinse well under running water. Combine quinoa and water in a medium-sized pot. Keep the liquid-grain ratio to 2 cups water with 1 cup quinoa. Bring to boil, then reduce the heat and let it simmer, for 10-15 minutes. Remove from the stove and let it sit, covered, for 5 minutes. Fluff the quinoa with a fork.