This tempered glass bowl is indispensable in the kitchen for serving or organizing ingredients before baking or cooking. Since 1945, the Duralex factory in France has pioneered the production of tempered glass, a durable, nonporous material that’s two-and-a-half times stronger than any ordinary glass. This versatile glassware can be used in the microwave or freezer and cleans up easily in the dishwasher.