On the 23rd May 1615 king James I banned by royal proclamation the use of charcoal in glass making, leading to the use of coal fired furnaces which were far higher in heat. The bottles created in Herefordshire thereafter, titled Verre Anglais by the French, were able to withstand the considerable pressures of a drink as it becomes sparkling. Deliberately sparkling drinks were born, experimentation began making the local ciders of the day sparkle, and these bottles went on to form the foundation of the Champagne Method..
