Profitable dairying; a manual for farmers, dairymen and students . ng to it a few drops of acid before filling the bottles, otherwise thecarbonates in the water may cause a foam to appear on the fat andspoil the reading. Only a few drops of acid should be used, and toprevent accident these should be dropped from the acid measureand not from the bottle. Great care is necessary in handling this acid. The bottles are whirled a second time for one or two minutes, thefat is then brought up into the neck by adding a few more drops ofhot water, the bottles returned to the tester and whirled a third t
Profitable dairying; a manual for farmers, dairymen and students . ng to it a few drops of acid before filling the bottles, otherwise thecarbonates in the water may cause a foam to appear on the fat andspoil the reading. Only a few drops of acid should be used, and toprevent accident these should be dropped from the acid measureand not from the bottle. Great care is necessary in handling this acid. The bottles are whirled a second time for one or two minutes, thefat is then brought up into the neck by adding a few more drops ofhot water, the bottles returned to the tester and whirled a third timefor a minute or two, when they are taken out and placed in a waterbath having a temperature of 120-140 degrees F. where the fat columnshould be submerged for four or live minutes. 30 PROFITABLE DAIRYING 6. Reading the Fat: The fat column is read from its highest point to its lowest pointwhile yet hot (130-145 degrees F.) and before it has had time tocontract. If the fat should get cold it may be melted by placing thebottles in hot water well up to the The dividers in the first position for reading the test. Th2 dividers in the second position. If both ends of the fat column are above the zero point, notethe reading of these two points and take their differences. Forexample: If the lowest point of the fat is per cent and the highestis per cent, then the per cent of fat is — or per quicker way is to place a pair of dividers against the neck of thetest bottle with the legs so spread that one of them rests on the highestpoint and the other on the lowest point of the fat and then moveit down so that the lower leg rests at the zero point; the upper willrest at the correct reading of the fat. 7. Emptying the Waste: The waste in the bottles should never be emptied into anythingbut earthenjars. This waste contains much strong acid, and should 31 PROFITABLE DAIRYING be thrown where it cannot do injury to plants or animals. It iscustomary to place a bo
Size: 1821px × 1372px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidprofitableda, bookyear1915
