[univacky]

Ice cream was popular in the 18th century, particularly known to be favorites of George Washington and Thomas Jefferson.

Their homes at Mount Vernon and Monticello, respectively, both have ice houses. They would harvest ice from the Potomac or Rapidan River, pack it with insulating material (sawdust) and it would keep for quite some time in the cool well/cellar-like structure.

https://www.mountvernon.org/the-estate-gardens/ice/ https://www.mountvernon.org/the-estate-gardens/location/ice-... http://www.ushistory.org/presidentshouse/history/icehouse.ph...