Rinse quinoa in a fine-mesh strainer under cold water until water runs clear.
Transfer it to the Instant pot, pour in the liquid, and a pinch of salt, if using.
Secure the lid. Move the steam release valve to Sealing position.
Select Manual/Pressure Cook to cook on high pressure for 3 minutes.
When the cooking cycle is complete, let the pressure naturally release for 7-8 minutes, then move the steam release valve to Venting position to release any remaining pressure.
Carefully open the lid. Fluff it with a fork and serve.
