Riedel expanded and purchased the world-class glass decorator ‘Vincenz Pohl in Neuwelt’ which opened additional business opportunities to the luxury glass market. The decorated glass produced in this workshop with colourful enamels became extremely popular in Venice, the French market as well as overseas in South America. The demand for luxury glass surpassed supply which made it necessary to open an additional decoration workshop at the Polaun plant. The Polaun plant became increasingly important for business because of its packaging department, paint shop, kilns for firing painted glass, and last but not least a showroom for customers. In 1887, Wilhelm Riedel invented a patented process to machine colour a scalloped edge instead of using hand paint. That same year, the company displayed its first-ever luxury glassware at the prestigious Leipzig Fair.