It???s microwave-safe with the lid removed. (Tip: if you tend to favor foods that can stain, e.g. curry or tomato sauce, go for the black model.) (Actually it seems the dividers are white even in the black box so???that doesn???t quite work ^_^; For what it???s worth though I have the white model, and so far it hasn???t stained at all, even after packing some tomato-sauce pasta in it.) Available a