Tempered glass is manufactured through a process of extreme heating and rapid cooling, making it harder than normal glass. The brittle nature of tempered glass causes it to shatter into small oval-shaped pebbles when broken. This eliminates the danger of sharp edges. Due to this property, along with its strength, tempered glass is often referred to as safety glass. The thermal process that cures tempered glass also makes it heat resistant. Tempered glass is used to make the carafes in automatic coffee makers and the windows in ovens. Hockey Stadiums, computer screens, skylights, door windows, tub enclosures, and shower doors are more examples of places you will find tempered glass. Building codes also require the windows of many public structures to be made of tempered glass.