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Pasteurized milk is milk which has been heat-treated to kill pathogens which cause disease. Not all pathogens are removed during the pasteurization process, so pasteurized milk is not 100% sterile, but many people consider it to be safer to drink than raw milk which has not been pasteurized at all. The bulk of the milk sold in commercial grocery stores is pasteurized, and much of it is also homogenized to prevent the cream from separating.

First the milk is preheated and standardized by in line milk fat standardization system. The purpose of standardization is to give the milk a defined, guaranteed fat content. Common values are 1.5% for low fat milk and 3% for regular grade milk, fat contents as low as 0.1 and 0.5 % is skim milk.

Then the standardized milk is homogenized. The purpose of homogenization is to disintegrate or finely distribute the fat globules in the milk in order to reduce creaming. Homogenization may be total or partial. Partial homogenization is a more economical solution, because a smaller homogenizer can be used.

The milk, now is pumped to the heating section of the milk heat exchanger where it is pasteurized. The necessary holding time is provided by a separate holding tube. The pasteurization temperature is recorded continuously. Pump is a booster pump which increases the pressure of the product to a level at which the pasteurized product cannot be contaminated by untreated milk or by the cooling medium if a leak occurs in the plate heat exchanger. If the pasteurization temperature should drop, this is sensed by a temperature transmitter. A signal activates flow diversion valve and the milk flows back to the balance tank. After pasteurization the milk continues to a cooling section in the heat exchanger, where it is re-generatively cooled by the incoming untreated cold milk, and then to the cooling section where it is cooled with ice water. The cold milk is then pumped to the filling machines.

Pasteurized milk uses fresh milk as raw material and pasteurized by pasteurization, that is, heating at 72-75 ° C for 10-15 seconds. Pasteurized milk can kill harmful bacteria in milk and preserve nutrients and pure taste. After centrifugation, standardization, homogenization, sterilization and cooling, it is poured into liquid state and directly supplied to consumers for drinking.


Three kinds of packaging of pasteurized milk:Roof bags, also known as fresh houses, pasteurized plastic bags and glass bottles.
Production range: 2td-500td




Equipment list of pasteurized milk processing line
Name Size Main parameter
Milk reception and storage unit
Milk acceptor 300L SUS304 stainless steel, single layer, CIP spraying ball
Milk pump 3T/H SUS304, pump lift 24m, hard alloy mechanical seal, inner shell mirror polished
Single piping filter 3T/H SUS304, single pipe, stainless steal filter element of 100 mesh
Milk storage tank 1000L SUS304, heat insulated, dimple pad jacket, vertical agitator, CIP spraying ball, breather valve, digital show thermometer, sampling point
Milk pump 3T/H SUS304, pump lift 24m, hard alloy mechanical seal, inner shell mirror polished
Blending unit
Storage tank 500L SUS304, heat insulated, dimple pad jacket, vertical agitator, CIP spraying ball, breather valve, digital show thermometer, sampling point
Milk pump 3T/H SUS304, pump lift 24m, hard alloy mechanical seal, inner shell mirror polished
Single piping filter 3T/H SUS304, single, stainless steal filter element of 100 mesh
Plate-type exchanger 1.5T/H SUS304, double pipes
High pressure homogenizer 500L/H 40MPa
Cream separtor unit
Milk separator 500L/H The content of dried skim milk (%)<0.03, the speed of rotator is 8000rpm
Buffer container 100L SUS304, with a cover, single layer
Buffer & cooling container 100L SUS304, with a cover, single layer
Milk pump 3T/H SUS304, with a cover, heat insulated, dimple pad jackets
Butter churner 100L SUS304
Yogurt storage, ferment and filling unit
Temporary and ferment storage tanks 500L SUS304, heat insulated, dimple pad jacket, vertical agitator, CIP spraying ball, breather valve, digital show thermometer, sampling point
Milk pump 3T/H SUS304, pump lift 24m, hard alloy mechanical seal, inner shell mirror polished
Rotor pump 1T/H SUS304, hard alloy mechanical seal, adjustment speed by manual
Plastic pouch filling machine
Plastic cup-shaped filling machine
CIP system unit
Manual CIP system 3×500L SUS304, single clening circulation, with CIP pump of connected tanks
CIP return pump 10T/H SUS304, pump lift 24m ,hard alloy mechanical seal, inner shell mirror polished
Power system unit
Cold water equipment 7000 kcale per hour, air cooling refrigeration
Hot water boiler 1000Kg/h, outlet temperature is 90°C
Installation system Stainless steel piping system,power piping system, electric controlling box, electric installation material, installation and commissioning


Specifications

Raw material

Liquid cow milk, goat milk, camel milk, milk powder dissolving with water

Products

Pasteurized milk, UHT milk, yogurt, flavored milk, milk drink, sour milk, butter, cheese and so on.

Capacity

Daily production : 3000L/5000L/10000L/20,000L

Product package

Aseptic pouch, Aseptic paper box, Gable Top box, plastic bottle, plastic cup, glass bottle, plastic pouch, Bulk, according to customer’s requirement

Service Including

Turnkey project service: design, manufacture, installation, commissioning, training, after-sale service and so on.

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