Margarine From Oil (1940-1949)

British Instructional Films presentation. A lorry pulling a tubular tank pulls into a depot. Written on the side of the tank is: “Towers Creameries - Mitcham.“ Interior of the depot - large metal containers. The oils are weighed. A man turns on taps which let oil into a vat. C/U of the weight dial of the scales. C/U of pipes with labels: “Hardened Whale“, “Hardened Ground Nut“, “Palm“, “Coconut“ and “Ground Nut“. Various amounts of different oil pours into the vat from the different taps. C/U of a piece of paper listing the percentages of the different oil used. A hand with a pencil ticking off the different oils is seen. Man looks into a large vat. We see oil entering the vat at the bottom. Emulsifier is added - the man pours it from a bucket. We see the mixture being stirred. A temperature gauge reads 41 degrees centigrade. Salt is mixed with iced water. Man stands by the vat where this takes place. Churning is the next step. Cultured milk is added to iced water. We see the two