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One type of more effective water treatment today is ultrafiltration, a process which uses membranes with pores of molecular size that operate at low pressure to obtain fluids without high molecular weight. The same has different applications, such as a prefilter for reverse osmosis.

Furthermore, this water treatment is applied to purify various liquids, like juice, wine or milk. In this context, ultrafiltration has been crowned as one of the most used in the dairy industry, with the improvement obtained or specification of certain products, and creating others.

In relation to milk through ultrafiltration is possible to enrich this protein liquid. The procedure is done to prevent the use of nonfat dry milk, which increases the protein, but it gives milk tastes very sweet, which is often resisted by consumers.

Accordingly, this water treatment is used to obtain low-carb milk, aspecial substance called milk protein concentrate by ultrafiltration, which is obtained with a powder that respects the original flavors and odors to enhance the solids in products such as sour creams.

Ultrafiltration is of great importance in the production of milk based ice cream. Since it generates a higher concentration of protein ice cream which gives the final product a longer life, since it extracts lactose and some minerals that are responsible for the crystallization at the time of crystallization over time . Also, this method of water treatment by the diafiltration, which is the addition of water, enables the creation of ice cream with low-carb.

The most important and revolutionary use of ultrafiltration in the dairy industry is given in the creation of cheese. The system is implemented to achieve the pasteurization of milk, ie the removal of solids and microorganisms, which used to be through thermal treatment.

The main advantage of ultrafiltration in cheese making, is that it will hold the particles such as calcium, sodium, and serum phosphorus, which give the characteristics to food, such as creaminess and a high content foodstuff. In this way, the taste and smells are combined with the security of owning food without any organisms that might affect health.