But how did you do it before? Your grandmother’s unforgetable Gratin Dauphinois , your children’s first lava cake, your famous osso bucco ... With Basics, you have finally found the boxes worthy to store these small dishes (at least, what’s left of them !). These tempered glass boxes (an ultra resistant material that does not retain odors or bacteria) have been designed to maintain the freshness and taste of food. They can be used in the freezer or in the microwave and are stackable (the same size) for easy storage.