Human milk (HM) is more than a food complex; in addition to micronutrients and human-coded bioactive complexes it also includes many antioxidants, antibacterial, prebiotics, probiotics, immune-boosting constituents, and many other bioactive components. Some of these components may deteriorate during storage, and expressed EHM starts deteriorating as soon as it leaves the breast. Nevertheless, whenever nursing at the breast or feeding of fresh EHM is not possible, feeding of stored EHM is considered the next best thing to feeding at the breast. Efficient heat transfer abilities affect both heating and cooling processes.