| OCR Text |
Show TEMPERATURE OF MILK IMPORTANT Results of Experiments Obtained by Dairy Experts Explain Why Product Sours. SURFACE COOLER IS FAVORED Coldest Water Obtainable Should Be Used and Cans Set In Well Insulated In-sulated Tank Protection Needed In Shipping. (Prepared by the United Stntes Department of Agriculture.) Milk of ordinary quality held at 75 degrees Fahrenheit, a temperature not uncommon in the summer, soured In 80 hours, while the same quality of milk held at 55 degrees kept sweet for 80 hours, and at 40 degrees for 180 hours. These results were obtained ob-tained In an experiment carried on by the dairy division, United Stntes Department of Agriculture, to determine deter-mine the effect of temperature on the milk ; and the results explain in a large measure why milk which has not been cooled on the farm and kept cold often Is sour when It arrives at Its destination. The best and quickest way to cool milk to 50 degrees Fahrenheit is over a surface cooler. Use the coldest water wa-ter available, and then set the cans of milk In a well-insulated tank filled with water below 40 degrees Fahrenheit. Fahren-heit. A 10-gallon can of milk precooled with water at 55 degrees Fahrenheit and set In a tank of Ice water at 37 degrees Fahrenheit was cooled at 50 degrees In 20 minutes. The use of n surface cooler Is especially es-pecially necessary when the time between be-tween milking and shipping Is short. If warm milk Is run over a surface cooler, and then set In a tank of water wa-ter cooled with Ice to 40 degrees Fahrenheit or below, It should not be difficult to cool milk to 50 degrees : i . :' i . i : X i i ;. :i ;i -,:Vv i , V ' - i i ill rrwm --y '-- Milk Should Be Cooiea Immediately After It Is Drawn. within an hour after It leaves the cow. Because precooling with a surface cooler Is not practiced and Ice Is not put Into the cooling tank before the milk, much milk reaches the shipping station In summer at so high a temperature temper-ature that It sours on the way to the city. Even under the best conditions, milk transported during hot weather usually usual-ly is several degrees warmer by the time It reaches the railroad station. To show the Importance of protect- |
