Wash the brown rice in water and drain. Repeat this step two more times to remove excess starch.
Transfer the washed rice to a food container and add filtered water until the rice is covered. Place the container in the fridge for 12 hours.
Drain the soaked rice and transfer it to a high-speed blender.
Add 180 milliliters of water and the remaining ingredients.
Blend on medium speed for ~30 seconds of until the batter is smooth.
Heat a nonstick pan or a lightly greased pan over high heat.
Add ¼ of the batter in and very quickly and gently spread the batter into a circular shape with a ladle.
Cook the tortilla for 2 minutes, then flip and cook the other side for 2 minutes.
Flip the tortilla one last time and cook for 2 minutes. The tortilla should puff up slightly and brown spots should start forming.
Remove the tortilla from the pan and place on a large plate. Cover the plate with a paper towel, clean towel, or a lid.
Repeat the cooking process to make 3 more tortillas.
