Sorg’s Clean Melter is the focus the group’s seven-part docuseries ‘Journey to Decarbonisation’.

The hybrid furnace draws up to 80% of its power from renewable electric energy, reducing carbon emissions compared to non-hybrid and non-electric furnaces.

The series was filmed across Germany and at the Sorg Group’s headquarters in Lohr am Main.

It launches on 16th September 2025, with episodes to be released biweekly at sorg.de.

All episodes will also be available to watch on YouTube shortly afterwards.

The series interviews key individuals involved in Sorg’s decarbonisation journey, highlighting the group’s mission to make glass melting more sustainable.

By openly sharing both the successes and the setbacks, Sorg aims to offer not only insight into the decarbonisation of glassmaking, but also a blueprint for other industries looking to make their own transition to cleaner, more sustainable production methods.

Although glass is generally 100% recyclable, the energy required and emissions produced during melting remain a major sustainability challenge for the industry.

Electric melters are a proven technology, having successfully melted glass for many years.

However, several limitations, including their maximum pull, restricted glass chemistry and sensitivity to changes in material and process, have limited their wider adoption.

The glass industry has long needed a new technology to overcome these limitations and expand the use of electric melting to a broader range of applications, such as the Clean Melter.

In addition, Sorg’s mathematical modelling has played an essential role in the development of the Clean Melter, enabling simulation of furnace behaviour and supporting the optimisation of the design.

Some of its key characteristics include: a refining shelf to stabilise the melting process and secure the glass quality; a radiation wall to keep the energy of the superstructure heating in the melting area; high flexibility in raw materials and raw material changes with no negative impact on the quality of the glass produced.