'Auto-Thermos' pressure cooker, 1929.

Image number: 10313933

'Auto-Thermos' pressure cooker, 1929.

The cooker is of insulated cast aluminium, with a lid secured by a removable yoke, and has an Easiwork pressure gauge. A spring-loaded piston acts as a pressure regulating and warning device. The cooker's airtight structure creates high pressure and allows water to go beyond its boiling point. This leads to food cooking more quickly.

Image number:
10313933
Credit:
Science Museum/Science & Society Picture Library
Date taken:
20 October 2003 14:32
Image rights:
Science Museum