Bottlemaking annealing furnace,
Encyclopédie de Diderot et D'Alembert, 18th century

Bottles and Flasks

Different forms of glass containers have been developed throughout the centuries: bottles, flasks, pots and phials, etc. all a guarantee of good preservation and product authenticity.
While traditional production methods have been retained and have hardly evolved in the rare artisan glassmaking and artists' workshops, 95% of mass production is currently completely automated.

In 1898 semi-automatic moulding processes for hollow glass came onto the scene followed by total automation in 1920. This was a transposition from mould blowing which was used for glass containers as well as everyday table glassware.

A mandrel, the feeder, fed the correct quantities of glass at regular intervals from the tank furnace. This was pressed into a first cast, transferred into a second cast for blowing using compressed air and finally refired in an annealing furnace. The glass was then checked and transported to the packing warehouse or the silkscreen belt.