How to Cook Fluffy and not Bitter Quinoa

I am a big fan of the superfood Quinoa. It's a complete protein, it means contain all essential amino acids, which cannot be made by the body. It's considered one of the least allergenic food due to its low gluten content, becoming a great substitute for starchy pasta and rice.
 Very often friends asked me the same question, how I make a perfectly fluffy, not mushy, not bitter taste or soapy quinoa?

Here's how to cook great quinoa:
Quinoa has a natural coating,called saponin, which can make the cooked grain taste bitter. So rinse quinoa in a fine mesh strainer until water runs clear, drain and transfer to a medium saucepan with 1tsp of olive oil. Toast for 1-2 minutes until the quinoa is dry again. To cook 1 cup of quinoa add 2 cups water, add sea salt and bring to a boil. Cover, reduce heat to medium low and simmer until is tender and water is absorbed, about 15 to 20 minutes . Uncover, if you keep the lid on the quinoa will be overcooked. Set aside off the heat for 5 minutes and fluff with a fork.