Preserved Milk
Preserved Milk. Preserved milk is milk which has been condensed and canned without the addition of sugar. It would be a valuable food for children were it not that it is expensive, and will keep but a few hours after the can is opened. By sterilizing it in flasks with narrow necks, plugged with cotton, it may be kept as other milk is for an indefinite time. As soon as the can is opened, the contents should be poured into a glass or earthen vessel, for, on exposure of the milk to the air, chemical action takes place with the tin.[63]