Flow Rate / Cooling Efficiency
Make sure the large volume of water used through your plate cooler is used wisely. Effective heat exchange will result in a small temp difference (within 20C) between incoming water and outflowing milk. How to check this.
Plate coolers need to be sized correctly for expected milk flow. Industrial plate coolers require less water (1.5-2 times milk volume) than the older ‘M’ types.
Tips on Getting the Best Result
Variable speed controllers on the milk pump (about $4,000) stabilise milk flow and make it easier to make good use of the water.
Pros and Cons
Efficient pre-cooling saves power and water but a clean, filtered water supply is needed.
Issues in Making it Happen
Time taken to dismantle plate cooler and clean it.
Better milk cooling improves milk quality.