Milk filters in Uzbekistan or how to increase milk quality

It’s in human nature to be skeptical about something which disturbs our common order of everyday life, work, or leisure.

When technologists of milk processing plants listen or read information about useful functions of filters for fine purification of raw milk, they smile and shrug their shoulders.

Principles of operation and importance of installation of filters for fine purification of milk at dairy farms and milk processing plants have been already described in the article “From high quality raw milk to high quality product”.

We’d like to point out once more that most obvious advantages of milk filters from fibroporous polypropylene are their throughput and filtration capacities which directly depend on size of pores and holes of fibrous polypropylene. Filter lets through all main milk components without loss of butterfat mass concentration.

Thus, when using filters for fine purification of raw milk:

1. Milk quality increases (due to milk purification from mechanical impurities)

Raw milk is divided into three sorts: highest, first, and second. They are defined according to the following parameters: Acidity: 16-18 ⁰Т for highest and first sorts, 18-20 ⁰Т for second one. Bacterial contamination (thousands per ccm): up to 300 for highest sort, 300-500 for first sort, 500-4,000 for second sort. Somatic cells count (SCC) (thousands per ccm): 500 for highest sort, 1000 for first and second sorts.

In some countries, in Great Britain, for instance, farmers whose milk contains high SCC have to pay special fine.

Average diameter of fat globules in fresh raw milk is 2-2.5 microns, varying from 0.1 to 10 microns and more. Gaps among polypropylene needles of cartridge vary between 15 to 25 microns. Hence, filter lets through fat globules keeping fat content of milk. When using filter up to 95% of mechanical contaminations sized less than 25 microns will be purified that there is no hair, fur particles, manure or ground particles left. Thickness of hair is 180 microns. 1 micron = 0.0001 cm. Filters of fine purification of raw milk hold mechanical contamination sized up to 25 microns that is 7 times less than a hair (!!!).

2. Somatic cells count lowers (due to purification of the product from mastitis products).

High quality raw milk ==> high quality dairy goods

which means that reputation of dairy goods producer on the market increases as well as sales volume which leads to income growth of the entity.

The same situation is with milk producers:

High quality milk -> satisfied customer who is ready to pay for the quality -> income growth

“If they don’t evolve, they will be history” (c) The Croods, 2013

When we offer milk filters to dairy plants technologists they often ask: “Why do we need this? What will we get from this? When will we see the result?”

Asking questions is good but finding answers empirically is even better. We could find some technologists who were eager to take risk and make test installation of filters for fine purification of raw milk. Here are the results they got.

At one plant processing 5 tonnes of milk daily the following experiment was carried out. Two samples of milk:

1 – filtered and

2 – simple raw milk

were placed into small containers and remained there for three days. As the result, acidity of the filtered sample was 18 °Т, while of non-filtered one – 20 °Т.

At another plant technologist decided to go even farther. After milk filtration he collected contents held by the filter into glass flask and left at room temperature for several days. As the result, at day three warms appeared in the mass inside the flask. This proves how much milk is a favourable environment for bacteria development.

After this test plant technologist decided to negotiate with plant director so that to install filters for fine purification of raw milk at all farms from which the plant gets milk for its dairy products. If milk is filtered at milk producing farm right away, the processing plant will get it already cleaner which will make it possible to increase quality of dairy goods produced.

Another experiment was held at a small dairy plant in Chirchik. The plant processes 2.5 tonnes of raw milk daily. It was agreed that if the experiment shows vivid results, the plant will buy filters for the whole volume of milk. All in all, after 2 days test, the plant bought filters.

Mucous outgrowths outside cartridges are bacterial contamination from non-healthy cows that are remains of mastitis products in milk (remains of nidus), while inside fur and hair is held by the filter.

Those farmers and plants which made test installation of filters (keeping in mind that is simple procedure and free of charge) no longer question themselves why filters for fine purification of milk are necessary. More often they exclaim: “How could we work without them before?!”

Video: https://www.youtube.com/watch?v=71On43EaZmM

Dear farmers and dairy good producers!

If you’d like to carry out similar experiment or make a test installation of milk filters at your entity, you are welcome to contact us via +998 90 9260096, +998 90 9292808, info@bizplan.uz.