PURIFYING RANCID BUTTER.

Patea Mail, Volume V, Issue 479, 26 November 1879, Page 3

PURIFYING RANCID BUTTER.

(Scientific American.') Cai-vin Pkck some ten years ago obtained a patent for restoring and preserving butter -; his invention relates to a new process for purifying butter, having especial reference to arresting fermentation and restoring rancid batter. His process consists in melting the butter in a clean vessel finder a slow and regular heat\ and while it is melting he addstWo ounces Of pulverised alum to every five pounds of butter, the butter being stirred gently while melting. When thoroughly melted it is strained . thorough a fine strainer into clean cold water. The butter will rise to the surface quite transparent. The alum coagulates the albumen, the caseine-, and other foreign matter, all of which are retained in the strainer, leaving the butter perfectly clean and of uniforn consistency. When the butter is sufficiently cool to be in good Working order, it is carefully taken out and thoroughly worked, Adding to each five pounds of blitter three ounces of good dairy salt, one olince of clean saltpetre, and one ounce of pulverised sugar. The butter is then packed in Clean vessels, and is fit for use. By covering-it with strong brine and keeping in a cool place, it is claimed it will remain sweet for any desired length of time.

Apropos to the above a correspondent in Land and 'Water answers an inquiry in in its column Who wants to knew how to sweeten rancid butter, as follows :—lf her butter his very bad, premises the writer, I cannot promise that the following plan will restore it; but I can at least describe a prqypss which I once watched at an agJtSPtural show, where a machine for washing butter was at work and where some very horribly odorous butter was in a few minutes rendered edible. It did its work very quickly, and by the simple turning of the handle, and the same sortdf process might be accomplished by means of a wire sieve or a strainer aby where. The butter was forced through a finely perforated receptacle into a large tub of fresh water. It Came rapidly raining down in a fine capilliform shower, lying upon the clear water in a tangle of golden filaments, singularly beautiful,till the water was all covered with them. When the whole lump had thus been transformed into yellow threds, they were stirred and beaten about in the water with a woOdeii beater; then collected and pressed into d fresh lump of generally improved appearance; and again forced through the machine in another shower of delicate filaments; Tlie, process was repeated several times, till the butter had been washed through and through;