Treo By Milton Store Fresh Round Glass Storage container Compact and easy to carry lunch. Glass containers are 100 percent food safe. It doesn’t leach potentially harmful chemical unlike the other materials. BPA free. Leak proof and air tight containers to keep food fresh. Enjoy hot food, as containers are microwave safe (up-to 120 degree c). Safe to use in freezers and refrigerators. Due to it’s non-porous nature, it doesn’t absorb food and food smell, stains or germs, making them very easy to clean. Retain crystal clarity even after repeated use.