Freezing milk bulk tank

Hi, Milk Fans

If your bulk tank is freezing it’s set too cold and you stand a chance of developing rancidity in the milk.  This is because the formed ice crystals puncture the fat globules, releasing lipase.  Be sure to not switch the tank on too early – some people like to do this to give the tank a “running start”, before the milk is pumped in.

When the milk freezes, it also concentrates the milk solids, making the milk sweet and increasing the viscosity.

Kind regards,

Leon the Milkman