What kind of thermometer do you used for measuring the temperature inside the pot in pot? Look here: Thermometer Retrieved from "http://solarcooking.wikia.com/wiki/Talk:Pot-in-pot_cooler?oldid=39230" Ad blocker interference detected! Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.