'Auto-Thermos' presure cooker, 1929.

 
'Auto-Thermos' presure cooker, 1929.
4 0 c m
 
34cm
actual image size: 26cm x 32cm

Description

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

© Science Museum / Science & Society Picture Library

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