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The secret to large homogenizer cost savings

Beverage Dairy Homogenization Prepared food

The secret to large homogenizer cost savings

Interested in cutting the size of your homogenizer investment by more than half while slashing your running costs by nearly three-quarters? Tetra Pak shows you how.

CONSIDERING the savings it generates, it is surprising that partial homogenization is not more widely used. Because you only put about one fifth of the product flow through the homogenizer – with the rest bypassing it – you can invest in a smaller and less expensive machine. And the savings don’t end there: partial homogenization also allows you to drastically reduce your operating costs.

“Partial homogenization is not something that is often talked about or widely used, but it does offer huge savings,” says Nicole Uvenbeck Line Product Manager, Tetra Pak.

In full-stream homogenization – which is the common approach to homogenizing milk – the product is standardized before homogenization and the entire flow passes through the homogenizer.

In partial homogenization, a maximum cream fat content of 18% is recommended. This results in a flow through the homogenizer of about one fifth of the full-stream flow. The skim milk simply bypasses the homogenizer. The skim milk flow and the 18% fat flow are then mixed together to the desired final fat content, and the same end product is achieved as with full-stream homogenization.

As an example, instead of 20,000 litres of milk going through the homogenizer, with partial homogenization only about 4,000 litres is homogenized. What does this mean in financial terms? “You can buy a much smaller model of homogenizer, so investment costs are lower – in this case around 55% lower,” says Uvenbeck.

In terms of running costs, the reduced demand for electricity, cleaning in place and water means that partial homogenization can bring down these costs by a massive 70%, compared with full-stream homogenization.

“Some suppliers might not be comfortable with only homogenizing the cream part, or wouldn’t even dare to think that it would work,” says Uvenbeck. “But we have a lot of experience with partial homogenization and know that it does work. There are lots of dairies out there that could really save a lot of money by selecting partial homogenization.”

How they compare: full-stream homogenization versus partial homogenization

Tetra Pak Homogenizer 300 (full-stream homogenization) Tetra Pak Homogenizer 200 (partial homogenization)
Power needed 80kW 13kW
Cleaning in place 33kW 6kW
Flow through homogenizer 20,000 litres/hour 3,890 litres/hour

Specification: Tetra Pak Homogenizer 300 and Tetra Pak Homogenizer 200.

  • Capacity: 20,000 l/h for full-stream homogenization and 4,000 l/hr for partial
  • End product: milk with 3.5% fat content
  • Pressure related to chilled milk, one-week shelf life.
  • Running time: 12 h/day
  • 300 days/year
  • 2h CIP/day

Partial homogenization is mainly applied to pasteurized market milk.

 COST SAVINGS:

55% in investment cost

73% in annual running costs.

 

Are you a producer of chilled milk in Europe and interested in seeing how much money partial homogenization could save you?

Contact us for a calculation.

 

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