If the water starts colder than the desired temperature (ice cold perse), what is the lowest temp that Joule can be set to? If the temp rises above the desired temperature programmed, will Joule continue to circulate the water without heating it further? Could Joule be used to maintain a water bath below 40 degrees while things thaw? I am not asking it to chill the water, but asking if a water bath in an insulated cooler starting at at 35 degrees with frozen items added to it could joule be programmed to somewhere between 38-41 degrees and used to thaw items in a controlled environment and without new input of running water.