Food scientist do tests on baking cake at Gas Research Centre.
Cooking tests at Gas Research Centre, Fulham, London.
Various shots female food scientist working in kitchen. C/U woman timing with stopwatch. C/U gauge. M/S woman carrying cake and putting it in the oven. She place a rod on a wire ( a "thermocouple"). Pan from oven to C/U of temperature reading instruments attached to rod by wire. M/S male scientist using apparatus to analyse chemical content of gas from stove hob.