Principles of Lactometer

An instrument to find out the content of the water in the milk or to test the richness of the milk is thus termed as 'lactometers'. The lactometer works on the principle of gravity of milk. The construction of this instrument is very unique as there is long vessel test tube and meter bulb attached to it so that whenever the milk is poured into the vessel the meter bulb starts floating on it. The purity of the milk gets tested without any dilution of water content in it. These lactometers are known for precision design, accurate measurement and reliability. These lactometers are used highly at milk processing units and at dairies. 

The various types of the lactometer are mercury coated lactometer which is highly acknowledged for its precision design and efficiency. The other type is the steel ball lactometer which known for its accuracy and longer working life. Lactometer consists of test tubes and meter bulb which are two of the main parts of the lactometer. The various parts of the lactometers are lacto jars which are made from stainless steel. Lacto jar are made from plastic for zeal type of lactometer. These lactometers offer accurate results and are very much appreciated for long lasting performance. 

Lactometers are very much used for industrial purpose where the milk which is manufactured is tested first and then is sent to make various products. 

Today we drink milk to remain fit and healthy but we do not get to know whether the milk is adulterated with the water or not. 

Thus to testify the same thing use of lactometers are very effectively method. Most of the milkman mix water in the milk to by reducing the contents of rich milk which only are essential for our body. 

To avoid the mixing of water in the milk lactometers are very much used and have gained importance in due course period of time.

Operation of the hydrometer is based on Archimedes' principle that a solid suspended in a fluid will be buoyed up by a force equal to the weight of the fluid displaced. Thus, the lower the density of the substance, the farther the hydrometer will sink. 

A Lactometer measures the cream content of milk. The more cream, the lower the lactometer floats in the milk.