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The tempered glass Lifefactory Food Storage containers, available in three sizes ($15–$20, Lifefactory.com), easily transition from oven to fridge (or freezer) to microwave to dishwasher without any worry of plastic taste (or toxins) affecting your food. A colorful silicone sleeve enwraps each container, which makes them a little sturdier than similar products, and the BPA-free lid securely attaches using button tabs. The 1 cup size is perfect for stashing a handful of berries, the 2 cup holds a small salad or hummus and veggies, and you can bring your lunch to work in the 4 cup size. Lifefactory also makes glass bottles in a variety of sizes.