Can black rice and white rice be steamed together?
Generally speaking, black rice and white rice can be steamed together. The detailed analysis is as follows:

Black rice and white rice can be steamed together because their textures and nutritional profiles complement each other. White rice has a soft, smooth, and delicate texture, while black rice offers a slightly chewy consistency and a unique aromatic flavor. When steamed together, the resulting dish combines the silkiness of white rice with the elasticity and richness of black rice, creating a more complex and satisfying mouthfeel. Nutritionally, white rice provides carbohydrates, while black rice is rich in dietary fiber, B vitamins, and anthocyanins. Consuming them together ensures a more balanced and comprehensive nutrient intake, meeting the body's needs for various nutrients, making this combination suitable as a daily staple food.
Before steaming, it is important to soak the black rice in water for 1–2 hours to allow it to fully absorb moisture and prevent undercooking. White rice only needs to be rinsed normally and does not require soaking. The ratio of the two rices can be adjusted according to personal preference—use more white rice for a softer texture or increase the amount of black rice for a chewier result. When steaming, use slightly more water than you would for white rice alone to ensure the black rice cooks thoroughly. After steaming, let the rice sit for 5–10 minutes before serving; this enhances the softness, stickiness, and sweetness of the final dish.