Nowadays, people use several different devices to handle food. But sometimes these materials are not safe for use. However, this particular egg steamer box is! This silicone egg cooker is certified “food grade” because it does not contain bisphenol A, is non-toxic, suitable for human consumption and environmentally friendly. But that's not all. This egg cooker is also microwave safe! This means you can easily use it in the microwave without fear of explosions.