The Souper Cubes® 1-cup tray makes freezing and storing soups, sauces, and stews both easy and convenient. Made from 100% FDA food-grade silicone Embedded steel frame prevents flopping BPA free Dishwasher safe EASY TO PORTION: These containers come with convenient fill lines at ½ cup, 1 cup, 125 mL, and 250 mL Oven safe up to 415F (trays only, do not put lids in oven) We’re a small family business dedicated to creative and convenient meal prep solutions. Souper Cubes is passionate about food and helping families enjoy more delicious meals at home. We have a 4.8 rating, over a 99% sell through rate, and have been featured on Shark Tank.