The invention relates to formulations comprising natural oils and fats that contain an osmolyte originating from extremophilic microorganisms and unsaturated fatty acids, with the osmolyte being present in an amount ranging between 0. The soaking apparatus includes a heat treatment apparatus having walls, a ceiling and a floor, each divided into a plurality of sections, a heater block mounted on each section, a thermal sensor mounted to each heater block, and a thermal controller to control heating of the heater blocks based on a temperature measured by the thermal sensor. The first and second multi-layered ceramic substrates are provided to surround the thermoelectric cooler.