Without a steady means of refrigeration, butter could be bitter in the winter if (according to 18th and 19th century sources) ... the milk froze then thawed, the cream was not skimmed off the milk in time, uneven turning of the barrel churn... or if the cattle ate ash tree leaves at "Michaelmas time" (Sept. 29).
Five years ago I did a post on this gifted slave who escaped to freedom on Washington's birthday and was never found. Well, now he has been found, but his image is lost. The striking portrait by Gilbert Stuart was not of Hercules nor by Stuart. The "toque" was actually a West Indian headdress. Hercules lived and was buried in New York City and he has dates! 1748-1812