Keep your leftovers chilled or frozen in these durable glass containers from the Pyrex Storage range. The clear glass lets you see at a glance what's inside, and the stackability factor helps you neatly store dried pasta, cereal, and other items on your shelf. When you're ready to reheat those leftovers, bring to room temperature then warm in the oven or microwave. Pyrex glass is nonporous, so it won't stain or absorb food odors. And, unlike plastic containers, glass won't emit harmful chemicals during microwave use. This glass container is incredibly durable as long as sudden changes in temperature are avoided. Pyrex glassware is safe for the oven, microwave, freezer, refrigerator, and dishwasher, and even looks good serving at the table.