One of the primary reasons many people opt for glass containers is their safety. Unlike plastic, glass does not leach harmful chemicals into food, especially when heated. BPA (bisphenol A), phthalates, and other harmful substances often found in plastic containers can pose health risks, particularly when food is stored or reheated. Glass, on the other hand, is made from natural materials and is free from these toxins, making it a healthier option for food storage.