Glass is mainly made of sand, soda, and lime melted at a high temperature. Tempering or various additives gives you extra-strong and impact-resistant glass that in some cases can be taken straight from freezer to oven without cracking. A big benefit is how glass can be recycled over and over without the quality deteriorating. Also, a lot less energy is needed to melt recycled glass compared to new raw materials. Our goal is to eventually use only recycled glass in our range.