Place the brown rice in a strainer and rinse under cool water for about 15 seconds to remove extra starch. Drain well.
Transfer the rinsed rice to the rice cooker. Add 2 cups of water and, if you choose, add salt or olive oil to boost flavor.
Cover the rice cooker and select the brown rice setting (or use the regular cook function if unavailable). This should take about 45 minutes, depending on your rice cooker.