In 1790 he became the first person in Poland to fly in a hot air balloon when he made an ascent over Warsaw with the aeronaut Jean-Pierre Blanchard, an exploit that earned him great public acclaim. He spent some time in France, and upon his return to Poland, he became a known publicist, publishing newspapers and pamphlets, in which he argued for various reforms. He also established in 1788 in Warsaw a publishing house named "Drukarnia Wolna" (Free Press) as well as the city's first free reading room. His relation with the King Stanisław II August was thorny, as Potocki, while often supportive of the King, on occasion did not shy from his critique. He was highly critical of the Russian ambassador, Otto Magnus von Stackelberg.