The rice I've been cooking in recent times is the organic whole grain brown rice from Costco. So, what ratio there? TIA...
Edit: Here's some info about how I cook rice these days... There's been concern about the arsenic in rice. Some research indicates that it depends some on the region it's grown in, probably what kind of rice it is. Arsenic is a carcinogen, and etc. Not good for you. Famous poison. My researches online don't absolve brown or even organic rice. Indian and Peruvian grown is probably safer. Thing is, rice tends to draw arsenic out of the ground more than a lot of crops.
So, in accordance with some online admonitions, I've been rinsing the rice before cooking. I also simmer the rice in some water for a minute or so, then drain, and rinse again, then cook. These processes remove a significant amount of the arsenic that might be in it. The upshoot of this is that I need to add a bit less water because simmering/rinsing has put some water into the grains already.
Of course, the Instant Pot doesn't leak much if any steam during the cooking process, unlike my simple sauce pan technique that I've used for many years, so a water reduction is in order just based on that.