Hints on Dairying

by T. D. Curtis

WHEN TO SKIM.

Whether skimming off the cream or drawing off the milk be practiced, the question arises as to the proper time for performing the operation. The more general practice is to "skim" just as the milk gives unmistakable signs of acidity, or thickens a very little on the bottom of the pan or can. A few prefer to skim the cream sweet, and still another few let the milk lopper. This wide divergence of opinion and practice shows how very imperfectly is the real philosophy of butter making understood; but, notwithstanding this, each one is usually very tenacious in his belief as to the superiority of his own practice. A few fancy butter makers say that the finest butter is made from sweet cream, raised in cold air by shallow setting. It is insisted by them that airing and oxydizing, and not souring, is what "ripens" cream and fits it for easy churning, while this airing and oxydizing imparts the fine aroma so much desired in the finest butter. This view of the origin or development of flavor is sustained by experiments made at Cornell University, at the suggestion or under the supervision of Prof. L.B. Arnold. It is also claimed that the lack of flavor and the short-keeping of sweet-cream butter churned from cream raised by deep setting is due to its lack of oxygen, and that souring the cream thus raised, before churning, both oxydizes it and imparts a ranker and more positive flavor resulting from the effects of the lactic acid. We think both propositions look reasonable, and we should like to see a series of scientific experiments made to determine both the effects of oxygen and the effects of lactic acid on the butter product of cream. At present, theory and practice vary so widely with different butter makers who turn out a high-priced butter for the market, that one is led to doubt all theories and query whether the quality of butter does not depend on something not yet known, which is independent of all current theories and practices.

CHURNING.

And as to the proper time of churning, there is an equal divergence of opinion and practice. One churns his cream sweet, another wants it slightly changed, a third wants positive acidity in the cream, and a fourth loppers the cream, while a fifth lets the cream stand even twelve hours after loppering—and this extremely sour cream butter sells for the very highest market price. So we are left all at sea, so far as acidity is an element in butter making. Again, to further illustrate these extremes, while a gentleman in Vermont is setting his neighbors agog by raising cream in a vacuum, a Canada gentleman is experimenting with an invention to raise cream by hydrostatic pressure and get the fat of the milk so pure as to dispense with churning. We hope both will succeed.

TEMPERATURES.

There is not so wide a difference in opinion and practice as regards the temperature at which churning should be done in order to secure the best results; yet there is quite a wide range—from 55 degrees to 65 degrees—or 10 degrees Fahrenheit. But only a few go as high as 65 degrees or as low as 55 degrees. The great majority favor 60 degrees to 63 degrees as the proper range of temperature for different seasons and conditions. Some favor 58 degrees to 60 degrees, and all appear satisfied with results. It is not improbable that different degrees of acidity in the cream require different degrees of temperature for churning, and that sweet cream requires still another variation of temperature. So the breed, condition of the cows, kind of feed, quality of feed, character of the water drank, length of time the cows have been in milk, and other considerations, require variations in the temperature. Sure we are that the difference in conditions and surroundings must explain some of the differences of opinions and practices among butter makers.

WHAT MAKES THE BUTTER COME.

It is not known whether concussion or friction, or both, cause the separation of the butter from the buttermilk in churning. But we suspect that concussion is the real agent that produces the separation, as we have really seen no churn that did not in some way produce more or less concussion. All the churns we have seen used appeared to produce good results, and we find every dairyman is satisfied with the work of the churn he uses, whatever the kind, style or patent. We cannot, therefore, recommend any style of churn as superior to another, but we prefer the simple and less expensive forms, as not only costing less but being easier to keep clean.

The churning should be steady and not violent. A too rapid or sudden separation of the butter from the buttermilk is not desirable. It is no recommend for a churn that it churns quick. Such a churn is apt to injure the so-called grain of the butter and make it salvy and greasy. The least churning that will separate the butter from the buttermilk is the best.

WHEN TO STOP CHURNING.