A pottery technique that originated in 18th-century England is making a massive resurgence online thanks to artist Kevin Kowalski.

Known as mocha diffusion, this technique is characterized by the interaction between an acidic mixture and alkaline surface that yields stunning results.

Kowalski teaches high school pottery classes, and he came across mocha diffusion while searching for new techniques to introduce to his more advanced students. Since then, the artist’s take on this approach has garnered plenty of attention online, effectively serving as the springboard for a brand new chapter in his career.

Kowalski’s creations quickly went viral after Bored Panda shared a video of the artist at work. Since then, he’s gained thousands of followers who can’t get enough of his unique spin on a centuries-old practice.