I've eat 1 -2 days old sandwiches of peanut butter and a lot of other things (ham, chiken, chocolate, cheese...) without problems ;) 15-20 hours is not too much. I think, only raw eeg could be unsafe.
Part of the Smart grid glossary: The International Telecommunication Union (ITU) is an agency of the United Nations (UN) whose purpose is to coordinate telecommunication operations and services throughout the world. Originally founded in 1865, as the International Telegraph Union, the ITU is the oldest existing international organization.
Virginia Union University (VUU) is a historically black university located in Richmond, Virginia, United States. It took its present name in 1899 upon the merger of two older schools, Richmond Theological Institute and Wayland Seminary, each founded after the end of American Civil War by the American Baptist Home Mission Society.