The tea bag was coincidentally invented in 1908 by the American tea merchant Thomas Sullivan. In order to reduce the postage costs for shipping his tea samples, Sullivan replaced the traditional tin cans and packed the tea in small, light silk bags. His customers saw this as an innovation and infused the bags with hot water to brew the tea. The convenient and uncomplicated preparation of the tea quickly made the tea bag popular among tea lovers – and this pioneer of the tea bag got more and more imitators. The tea, packaged in portions, was filled in silk, cotton or gauze bags.

During World War I, our sister company TEEKANNE supplied the soldiers with tea sewn into gauze bags by hand. The so-called "tea bomb" colored the water, but could not convince because the gauze caused unwanted taste changes in the tea.

In 1929 Adolf Rambold, an employee of TEEKANNE, succeeded in producing a tea bag made of perforated, tasteless special parchment paper, which released the flavor of the tea. 

Another revolutionary breakthrough came about two decades later with Rambold's invention and patenting of the double chamber tea bag: He used a cellulose fibre tube, which he bent in the middle and whose two chambers were filled with tea. Thus the tea was surrounded by water over a larger area and was able to develop its full flavor. 

At the same time as patenting the double chamber tea bag, Rambold developed the CONSTANTA, an unrivaled double chamber tea bag machine that enabled the industrial production of double chamber tea bags while fully preserving their taste. This invention revolutionized the consumer habits of people all over the world. As the inventor of this groundbreaking machine, TEEPACK became a worldwide recognized company in the tea bag packaging machine segment and is still the world leader in double chamber tea bag packaging machines.