Page:Foods and their adulteration; origin, manufacture, and composition of food products; description of common adulterations, food standards, and national food laws and regulations (IA foodstheiradulte02wile).pdf/218

 This promotes a uniform distribution of the salt in the form of brine throughout the mass of butter. The existence in butter of undissolved particles of salt is highly prejudicial to its taste and character. The quantity of salt used in butter is determined by the taste of the consumer. The more salt the butter contains the less value it is as butter and hence the quantity should be limited to the smallest possible amount demanded by the consumer's taste. Often butters are found in commerce which are so full of salt as to be wholly unpalatable and there is a tendency on the part of the greedy manufacturer to add excessive quantities of salt because it is very much cheaper than the butter itself and thus he hopes to add to the profit of the industry. On the contrary this practice usually results in loss, since such highly salted butter naturally brings the lowest price. The amount of salt which is used in butter should not exceed two percent.

——(Courtesy of the Bureau of Animal Industry.)

It is a common supposition that salt in butter is a preservative. This is true when used in large quantities, that is, in quantities which render the butter somewhat unpalatable. The very small quantity of salt used purely for condimental purposes cannot be regarded as aiding in any material way the preservation of the product.