PASTEURISATION OF SKIM MILK.

Dominion, Volume 4, Issue 1132, 20 May 1911, Page 8

PASTEURISATION OF SKIM MILK.

' SUCCESSFUL TRIALS. \ "The question of pasteurising skim-milk i .at dairy factories is one which is exercising the minds of a great many of the dairy companies throughout the Domi'ji ion, and it would seem that special I plants will bo installed for carrying on i this work at tho majority of tho fac- : . tories in tho near future," says Jtr. D. Cuddie (State director of dairy produce) i in an article in .tho "Agricultural Jour- , nal," and ho therefore- proceeds to givo some information about the subject. Dealing with tho experiments conducted by his Division,' 51 r. Cuddie says:— "With a view to encouraging tho extension of this principle, by obtaining and disseminating information regarding tho , working and cost of the process, and tho effect of tho treated skim-milk upon the stock to which it was fed, negotiations were entered into at the beginning of ' last season by tho Dairy-produco Division with tho Glen Oroua Dairy Company, whereby permission was obtained from tho company to install a plant on a some- ; what largo scale, capable of dealing with ■ from 1200 to 1100 gallons of skini-milk per hour. Ono of tho largest-sized pasteurisers was purchased, and fitted up >. early in tho season, whon tho work was commenced. The machino was connected ! with the exhaust-pipe from the engine as well as with a direct stcam-pipo from ; the.boiler. At tho commencement it was found that more or less trouble was experienced in connection with tho milk foaming after it was heated. The eapacr ity of the skim-milk tank was not sufficient, mid tho company gavo an order for ono of a larger size. Various appliances ■' for dealing with the froth were experimented with, and this trouble was eventually overcome. ... "The pasteurisation has been carried on : .for nearly seven months; the quantity of i milk handled daily has reached HSOO gallons; and after separation tho skim-milk : is heated to 17f>dcg. at tho rate of 1250 gallons per hour. As an economical factor in the working of the process, it may , bo.mentioncd that the exhaust steam from ! the engine, which is also used for boating the water for. use in the factory, is sufficient to raise tho temperature of tho milk to llOdeg. This being tho case, it is necessary to use only sufficient live ; steam to heat tho milk from that temperature to 17Cdeg.. tho amount of extra fuel needed being thus reduced to a minimum. The plant is a:sy to keep in order and tho timo spent in cleaning it after use is not great. Altogether it can bo said that the pasteurisation of tho skimmilk at this factory has proved a tlior- ' ongli success, nml it is intended to continue it under the control of the Division until the end of the season. It is then likely that tho company will undertako the work on their own account, and possibly instal plants at their several branches." The Sydney "Telegraph" says that a Narromine farmer is gathering a double ; crop of wheat, which in those parts is ' quite a unique experience. Tlip self-grown ! grrfin >•" a VCT . V food sample, yielding ' 2\ bushels per acre.