| Show DAIRY PURITY OF MILK 1 IS TOLD Guesswork In cheese factories and milk mille plants has hag been further reduced A simple device known as us the I nc blue test reveals the quality of milk accurately l and quickly The cost of ot the entire equipment Is not more than a n few fen dollars It consists of ot ofa a few dozen test lubes two pipettes a n water bath an nn alcohol lamp and a n thermometer Time Tile use of the tIme test In Wisconsin dairy plants has hafl h been Increasing steadIly steadily stead stead- ily fly says R Jit G. G Hastings s bacteriologist at ot time the Wisconsin A Agriculture ExperIment Experiment ment station Elation who dl described Its operation operation operation opera opera- tion as ng follows Ten Teu cubic centimeters centimeters centi centi- meters of as nB It I Is receive at tho the factory Is ls placed ploce 1 Jn In a Q test tube tulle along with one cubic centimeter of or a n solution tion Ion of the common lye dye jc known na os blue This la Is then kept at nt bo body temperature In n a kettle of or water which h Is heated y b-y the tho lamp The rhe dye colors the milk and tho the quality Is determined by hy the tile length of ot time required 1 for the color to disappear disappear dimp- dimp pear states Hn Hastings E The lower tho the number of ot bacteria the time longer longcr time tile blue color remains High quality milk mille will still show the d dye dyo e at oi the time end of fi rim hours while milk of high germ content will iIi return to Its Us normal color colorin in CO O or c even cn n less Only one s sample mple Is necessary to determine the condition of a n patrons patrons patron's patrons patron's pa pa- tron's mil milk 1 declares the Ole bacteriologist who points out that the tIme test has proved pro of or Immense e service to milk mUir distributors dis and dJ Re makers who tho receive re i-c- milk of ot different nt quality from fm-am froma a u large lorge number of at farms farm arias Through the use of time tile test It Is 19 much macli easier to help the time farmers Improve the time qualIty quality quai- quai ity a of tho limo milk which li they deliver Each Kach patron lUa may see the result of or his test and h he h. can con easily follow the effect of clean and sanitary practices about the time barn hurn and milk house |
