- Material: These glass bowls are crafted from heat-resistant high borosilicate glass, ensuring durability and resistance to breakage. They are lead-free and sturdier than standard glass options. The lids are made from food-grade PP material and are BPA-free. - High Temperature Tolerance: Capable of withstanding temperatures from -4℉ to 1040℉, these bowls are safe for use in the microwave, oven, refrigerator, and dishwasher (lids should be hand-washed). - Airtight Seal Lids Design: Each bowl comes with an airtight lid, making them portable and effective at keeping food warm and fresh for longer periods. - Space-Saving Storage: These nesting bowls are designed to stack neatly inside one another, optimizing your kitchen space. They are easy to store on shelves, taking up minimal room. Use Scenarios: 1. Meal Preparation: Use these bowls for prepping ingredients ahead of time; their airtight lids ensure freshness until you’re ready to cook. 2. Leftovers: Store your favorite dishes in the fridge without worrying about spills or spoilage, thanks to the secure lids. 3. Baking and Serving: Mix batter or salad in the bowls and bake or serve directly, showcasing their versatility in the kitchen. With their combination of high-quality materials, practical design, and versatility, these glass bowls are perfect for any kitchen need, from meal prep to serving and storage.