. American dairying: a manual for butter and cheese makers. Dairying. Butter Making. 255 This system of cooling and airing a dairy has not, that I am aware of, been long enough in use to deter- mine fully by practical tests, the extent of its useful- ness, but it looks well theoretically, and some of its results can be easily foretold. First, the air which enters the room through the sub-earth duct will be pure as well as cool. The absorbent properties of earth, it is well known, will deprive it of all noxious gases and odors, and take up its moisture and Fig. ^6. Whether the surface of
. American dairying: a manual for butter and cheese makers. Dairying. Butter Making. 255 This system of cooling and airing a dairy has not, that I am aware of, been long enough in use to deter- mine fully by practical tests, the extent of its useful- ness, but it looks well theoretically, and some of its results can be easily foretold. First, the air which enters the room through the sub-earth duct will be pure as well as cool. The absorbent properties of earth, it is well known, will deprive it of all noxious gases and odors, and take up its moisture and Fig. ^6. Whether the surface of the duct will ever become saturated so that it' will cease to absorb the im- purities of the air, time must determine. But it is certain that the air, in passing slowly through the duct, cannot fail to fall to the temperature of the earth in which it is imbedded; nor can it fail, for a time at least, to be entirely freed from vapor, dust and odors, by reason both of contact with the earth, and of condensation from its reduced tempera- ture. It allows of cooling milk with air instead of water. It is very much better for butter making to cool milk with cold air than to cool it with cold Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Arnold, Lauren Briggs, 1814-1888. [from old catalog]. Rochester, N. Y. , Rural home publishing company
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Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectdairyin, bookyear1876
