Posted February 16, 2015
Washington used his farms to experiment with agricultural practices. According to the Mount Vernon website, “Washington believed that it was the responsibility of wealthy farmers to undertake experimentation, as failures would be inevitable and losses would have to be absorbed while new techniques were perfected.”
That experimentation included developing a seven-year crop rotation that focused on wheat as the principle cash crop, but also included corn for domestic purposes and legumes to improve soil health.
In the polygonal barn, the top floor, accessed by an earthen ramp, consisted of a circular treading floor with gaps in the wooden floor. Wheat stalks were laid in the circular track and horses were trained to trot or walk around the circle. Once the wheat was literally separated from the chaff, the grain fell between the floorboards into the granary below. From there, the grain could be winnowed and sent to the mill.
In addition to the threshing barn, Washington also constructed a state-of-art gristmill. Constructed in 1770-1771, the gristmill could grind 5,000 pounds of flour a day.
With his own mill, Washington could produce his own flour for sale as well as grind wheat for other area farmers. According to Washington’s records, the “superfine” flour he produced sold for $8.50 a barrel, 50 cents to $7.00 higher than lower grades.
According to the Mount Vernon website, “An expanded gristmill allowed Mount Vernon to be less dependent upon prices in England, as flour and grain were purchased in a wider market, again something tobacco growing did not allow.”
While most of wheat was sold to markets like Alexandria and Fredericksburg, some shipments went as far as England, Portugal and Jamaica.
In 1791, Washington discovered a new process, invented by Oliver Williams, which could move both wheat and flour through the mill utilizing a bucket elevator, meaning the work could be done without manual labor. Washington installed the system into his gristmill, which is the same process the gristmill uses today.
Unfortunately, both the original threshing barn and mill were eventually dismantled as Washington’s estate fell into disrepair. Luckily, visitors today to Mount Vernon can visit recreations of both buildings. The threshing barn has regular demonstrations, threshing the wheat grown on Mount Vernon’s Pioneer Farm according to Washington’s practices. And, just down the road from Mount Vernon, the recreated gristmill grinds the grain for products sold in the Mount Vernon gift shop and for use in rebuilt distillery next door.
To learn more about Washington’s agricultural entrepreneurship, visit the Mount Vernon website at http://www.mountvernon.org/george-washington/farming/.
By Julia Debes