PASTEURISATION.

Hawera & Normanby Star, Volume XVIII, Issue XVIII, 4 September 1912, Page 5

PASTEURISATION.

A WAVERLEY INVENTION

A iocal invenlion which is likely to shortly come, into prominence in connection with the dairy industry is Mr Ernest Fergusson's pasteuriser, which has recently been tested at the Waverley Co-operative Factory with highly satisfactory results (says the Waverley correspondent of the Pa tea Press). Mr Fergusson has for some time past been in charge of the Westholm ■skimming station, and the invention speaks volumes for the technical skill and ingenuity of the young inventor. The pasteuriser is regarded by those couit petent to judge as one of the most simple, yet most effective, on the market. It occupies a small space, another of its advantages being the ease with which it may be cleaned. The principle is as follows:—The skim milk or whey •is run or pumped into a pipe high enough to carry it by gravitation to the top of the pasteurising cylinder, it is then carried in the pipe to the bottom of the cylinder which is corrugated, and as mentioned, gravitation forces it up to the top. In the centre of the cylinder is a closed cylinder which serves to fill up the centre of the large cylinder, so that the milk or whey is confined to a space 2 to 3 inches wide between the two. . When the fluid reaches the top it is run into a pipe which carries it clown to the bottom again. Here steam is admitted by a most ingenious device, and the steam, in addition to heating the whey, is used to force it to the top again. At the top it flows on to the lid of the cylinder and then runs down the outside of it, over the corrugations, into the basin at the bottom, and is then carried away, pasteurised, to the holding tank. The idea of carrying the whey up and down so many times is this: 'As it rises cold inside +>>c cylinder, it is running down the outside hot, thus the cold whey inside gets the benefit of the heat as it nears the top. while the hot whey is cooled as it reaches the bottom. This means that steam is conserved.

In tho test at the Waverley Co-oper-n+ivp "Factory the pasteuriser put through 660 gallons ner,hour. Tt is ■"racficallv imperishable bein~ ™iade of tinned oier. the unions' beinpr of fcynss. Mr Ferguson hns noxy placed hi*? m^"^ti"n on the market at a very reasonable figure.