In the 18th century France did not want to eat potatoes.
The potato had come to Europe from South America in the 1500s but it had a reputation problem. It was associated with famine food. Common people did not trust it. The French parliament actually banned the potato in 1748 on the grounds that it might cause leprosy.
Antoine-Augustin Parmentier believed the potato could feed France and potentially end famine. He had eaten potatoes while a prisoner of war in Prussia and understood their nutritional value. He spent years trying to convince his fellow countrymen to eat them.
Nobody was interested.
So he tried something different.
What He Did
Parmentier obtained a plot of land outside Paris and planted it with potatoes. Then he convinced King Louis XVI to post royal guards around the field during the day.
He made it very clear to the guards that they were not to prevent theft at night.
The thinking was simple. If royal guards are posted around something it must be valuable. If it is valuable people will want it. And if people can steal it at night they will feel they have gotten something exclusive.
The strategy worked perfectly.
People crept out at night to steal the royal potatoes. They planted them in their own gardens. They cooked them and ate them. They told their neighbors. Demand spread through the exact mechanism that official promotion had failed to produce.
Within years potato cultivation was spreading across France. Parmentier served potato dishes at dinner parties where the guests included Benjamin Franklin and Antoine Lavoisier. He reportedly sent potatoes to Thomas Jefferson who brought the idea of french fried potatoes back to America.
Parmentier is now the most famous name in French potato cuisine. Hachis Parmentier, a dish of ground meat topped with mashed potato, is named for him. His portrait shows him holding a potato flower.
Why This Story Matters Beyond the Cleverness
The Parmentier story is entertaining on its face. A clever man uses reverse psychology to make the French eat vegetables. That part is just fun.
But it is also a serious lesson about how human psychology actually works with new information and new ideas.
Official endorsement often produces skepticism. Prohibition produces desire. Exclusivity creates demand.
The same principle Parmentier used in a Paris potato field has been applied by marketers, governments, and social movements throughout history. Make something seem inaccessible and people will want access. Make something seem forbidden and the prohibition itself becomes the advertisement.
Parmentier understood human nature well enough to work with it rather than against it. The potato is now a staple of European cuisine partly because one man in the 18th century knew that people do not want what they are told to want. They want what they are told they cannot have.
Robert Lee Beers III is a writer and digital preservation advocate based in North Charleston South Carolina.