@elucubra @ProdigalFrog Yes! https://solar.lowtechmagazine.com/2012/04/how-to-keep-beverages-cool-outside-the-refrigerator/
@elucubra @ProdigalFrog Yes! https://solar.lowtechmagazine.com/2012/04/how-to-keep-beverages-cool-outside-the-refrigerator/