In Bulletin No. 8 was recounted an experiment in sweet cream butter-making which was carried out at the creamery of Mr. J. M. Daniels, Dayton, Iowa, on the 14th of December last.
Two tubs of sweet cream butter were made. One of these and a tub of ripened cream butter made the same day were brought to Ames for storage and to be compared as regards keeping quality. For the remainder of the winter and until about June 20th they were stored in a cellar, without ice, and examined once a month or oftener, with aid of a trier. When the weather became so warm that the butter was softened throughout, they were placed in an ice chest and there kept for nearly two months, when the trial was brought to a close, August 20th.
Patrick, G. E.
"Creamery and dairy notes,"
Bulletin: Vol. 1
, Article 4.
Available at: https://lib.dr.iastate.edu/bulletin/vol1/iss11/4