The most sober a crack addict ever sounds is when he’s talking about the science of, well, crack. Amid three hours of screaming about George Clooney, the illegal immigrants responsible for cleaning his post-bender hotel rooms, the “f***ing dictator thug” Donald Trump, and his father’s entire campaign staff, Hunter Biden only finally found peace when he initiated an extended chemistry lesson on the differences between crack cocaine and powder cocaine.

“The only difference between crack cocaine and cocaine is sodium bicarbonate and water and heat, literally,” the former first son said during a freewheeling podcast interview with YouTube host Andrew Callaghan. “People think of crack being dirty — it’s the exact opposite. When you make crack, what you’re doing is you’re burning off all the impurities so that it combines with the sodium bicarbonate, which makes it smokable, that’s all.”