In 1828, Coenraad Johannes van Houten developed the first cocoa powder producing machine in the Netherlands. The press separated the greasy cocoa butter from cacao seeds, leaving a purer chocolate powder behind. This powder was easier to stir into milk and water. As a result, another very important discovery was made: solid chocolate. By using cocoa powder and low amounts of cocoa butter, it was then possible to manufacture chocolate bars. The term "chocolate" then came to mean solid chocolate rather than hot chocolate, with the first chocolate bar being created in 1847.