Glass is an example of a viable material for the practice of the circular economy, due to its infinite recycling capacity without loss of quality. Currently, challenges such as waste contamination, high energy costs and logistical difficulties affect the effectiveness of the process. Both in Portugal and in the European Union, glass recycling has made significant progress, but it still faces obstacles related to separation and selective collection. In this context, design emerges as a strategic tool to minimise waste and optimise the life cycle of glass, integrating the different phases of the product, from raw material to the end of life. This study analyses the glass recycling chain in Portugal, with the main focus on bottle glass and packaging, comparing it with other European countries. It also identifies recent innovative solutions to improve the reuse rate of this material. To this end, industrial processes, sustainability policies and the impact of design on the consumption and recycling of glass were investigated. The paper positions design as a conceptual and strategic framework for intervention in the bottle glass cycle, linking industrial practice, public policy and user behaviour. Methodologically, it draws on secondary data and documented initiatives to derive implications for practice and policy. The research highlights that it is relevant to combine technological innovation and strategic policies and design, in order to reduce waste and enhance the circularity of glass.