Excellent for storing, baking and warming up meals. With a hermetic cap with silicone seal; food remains fresh longer and does not leak when carried. The valve for releasing steam makes it possible to warm up meals in the microwave oven with the cap on. Made of heat-resistant borosilicate glass, excellent silicone and resistant plastic. Resistant from -18 to 110 °C (cap) and 240 °C (jar).