Cullet is crushed glass that is recycled and used in the production of new glass products. It can come from various sources, including broken glass bottles, jars, and other glass items. Using cullet in manufacturing helps reduce energy consumption and raw material usage, making the glass production process more environmentally friendly. In the glass industry, cullet is an essential component because it melts at a lower temperature than raw materials. This property allows manufacturers to save energy and lower production costs. Additionally, using cullet helps reduce waste, as it diverts glass from landfills and promotes sustainability in the recycling process.