Image (c) Sound Ideas Media - Cheese Burn Sculpture Gardens Northumberland 2019
The technique of fabricating glass apparatus using a gas burner is called scientific glassblowing.
Laboratory glassware is generally made of borosilicate glass, Pyrex being one prominent brand. James A. Jobling Ltd., Sunderland, became the home of British Pyrex production.
In the 1970s, however, the glassblowers of this major UK centre were made redundant. Some of these skilled artisans turned to producing glass giftware.