A symbiosis of nature
and humankind

Brokisglass is a product of the ecological manufacturing practices of Janštejn Glassworks and BROKIS, whose close collaboration has given rise to a unique new material made of glass shards. Brokisglass adds an exciting new dimension and aesthetic to glass.

Made from shards of glass discarded during the manufacture of Brokis handblown glass lighting collections, Brokisglass has brought about a significant reduction in waste material. The transformation of these shards into a new decorative product represents an environmentally friendly and efficient upcycling of material, thanks to which the glassworks is able to employ a strategic circular economy and thus contribute to the creation of a healthy relationship between nature and humans.


In the manufacture of lighting glass, which Janštejn Glassworks specializes in, one third of each handblown piece is discarded. This valuable material resource (glass shards) is typically seen as waste. The development of Brokisglass was driven by a need to change the perception of these glass shards as waste, which previously was hauled to a landfill and thus burdened the planet and had a negative impact on the environmental landscape.

The story of Brokisglass begins in 2010, when Janštejn Glassworks recognized waste shards as a material resource well suited to transformation into a new product and began sorting it by colour and storing it. Initially, the glassworks collaborated on the development of the new product with the secondary glassblowing school in Valašské Meziříčí. The collaboration led to successful materials testing, after which the glassworks decided to invest in a new fusing furnace (2014).

After nearly three years of developing the material, which is produced by fusing shards of glass in a stationary furnace, Janštejn Glassworks teamed up with leading experts to create a conceptual design for a continuous furnace that could process the material more efficiently. The new furnace was built and put into operation in 2017. With a six-month testing period, production was optimized to process up to ten tons of waste material per week in double-shift operation.

Technical information


  • flat (panel) format
  • minimal absorptiveness
  • highly resistant to water and aggressive chemicals
  • easy-to-clean surface
  • highly resistant to wear
  • highly resistant to odour absorption
  • unmistakeable structural colouration
  • 100% safe and environmentally friendly
  • waste from panels can be fully recycled by the producer

Panel sizes

The standard thickness of the panels is 6 to 10 mm. The technology allows for the production of panels in sizes of 700×700 mm. Other sizes and thicknesses can be made to order. By choosing the correct production process, widths of 25 to 50 mm can be achieved. Smaller sizes and other formats and shapes are created by cutting individual panels with a waterjet. Holes of various diameters can be drilled anywhere in the panels, and any shape can be cut into them.

Interior applications

  • can be used as general interior cladding in common and technical spaces, off ices, and flats
  • illuminated interior cladding in living spaces (kitchens, bathrooms, hallways, etc.)
  • interior cladding for industrial buildings (laboratories, spaces with exposure to aggressive chemicals, food production facilities, veterinarian clinics, hospitals)
  • common spaces requiring indirect lighting (hotels, lobbies, passages)

Architectonic appointments

The ideal space for the application of BROKISGLASS are living and technical interiors. The organic characteristics of the material are especially apparent in combinations with metal or wood. The panels make it easy to maintain surfaces subjected to intensive wear. Because they are highly resistant to odour absorption, they are especially beneficial in common interior spaces. An important architectonic aspect and advantage of the material is that it can be illuminated.

Modifications and finishes

  • smooth, glossy face surface (standard production)
  • deburring of cut edges
  • polishing of deburred edges
  • bevelled edges 2–3 mm
  • non-right cuts and cutouts using waterjet grinding of traditional ornaments for decorative glass
  • sandblasting (full surface or decorative)
  • matte finish
  • panels can be curved within a limited radius

The panels can be easily cleaned in any application using plain water or water with ordinary detergent. Graff iti can be removed with solvents suited to the particular type of synthetic paint used. Abrasive scouring powders are not recommended.

Exterior applications

  • exterior large-format wall cladding
  • glassed-in outdoor spaces (atriums, pergolas, etc.)
  • garden and cemetery architecture (translucent dividing walls, garden tables, grave markers)