This may be made from skimmed milk, whole milk, or milk enriched by the addition of cream. The milk is condensed to about one-third of its original bulk.

The Composition Of Unsweetened Condensed Milk

Brand.

Water.

Protein.

Fat.

Lactose.

Ash.

Ideal

6200

83

124

1600

1.3

First Swiss .

6215

9.9

11.38

14.44

21

Average of 4 analyses by skilled analysts.

Peacock .

6405

-

1004

-

1.28

Lancet analysis.

Viking

-

8.9

99

133

-

Chemical and Assay Laboratory.

Hollandia

5700

11.3

98

18.5

34

-

The Ideal brand is stated to be enriched 20 per cent by the addition of cream and is preserved by heat. The Viking brand is said to be made from absolutely pure fresh milk of cows grazed on the Norwegian Highlands. The analysis of the Hollandia milk shows that it is relatively poor in water and made from a milk which was poor in fat.

These foods are valuable for travellers who do not like sugar in tea or coffee or who are debarred sugar. Sometimes they are useful in the treatment of infantile diarrhoea and other alimentary disorders, in which cane sugar is contra-indicated or only permissible in small amount. A dilution with two parts of water makes the mixture like cows' milk. Further dilution and the addition of cream and sugar are essential to make the fluid at all like human milk in percentage composition. It is generally necessary to add sugar in order to get the child to take the mixture. The addition of grape juice to the diet will counteract the evil effects due to the heat used in the preparation of the food.

If no chemical preservative is added, the milk soon turns sour when the tin is opened. This is a serious drawback to its use among the poor. Further, in proper dilution it is a much more expensive food than ordinary cows' milk.