1) Excellent heat endurance: can withstand drastic temperature change . 2) High surface hardness: 5 or 6 times of that of normal lids, hard to break, safe to use. The tempered glass lid lets you watch the progress, without having to let all the steam out. The cooking pot is coated with durable 2-layer whitford non-stick material, so cleanup is fast and easy, and the unit comes with a paddle to serve the rice without scratching the pot. Cooking healthier fresh meals just got a whole lot easier!