“Milk which has been drawn aseptically with every precaution taken against contamination and kept in sterile vessels and sealed has been recorded at least twice to have kept for periods of five and seven years,” said Mr L. W. Ruddle in an address to the Canterbury branch of the New Zealand Institute of Chemistry. “When it was opened it proceeded to sour as if it was that day’s milk." Mr Ruddle added that milk as drawn, provided the first milkings were discarded to avoid micro-organisms, was sterile, unless the cow was not'sound. Raw milk held at 10 degrees centigrade and collected in the usual manner was good for up to 48 hours, and sealed pasteurised milk was supposed to remain good for up to 96 hours.
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Wairarapa Times-Age, 20 June 1939, Page 6
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126Untitled Wairarapa Times-Age, 20 June 1939, Page 6
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