During the mixing of the beans, different varieties go into a cylindrical mixing machine before being brought to the grinders.Mixing beans for cocoa powder is less complicated than for chocolate. The edible chocolate mixture requires a lot of knowledge from the chocolatier. Each bean adds its own characteristic flavors to the blend and this process can only be influenced after years of experience. The final flavor is ultimately achieved by mixing two, three or more varieties after roasting. As with wine, the chocolatier must determine how much strong and mild beans are needed for a blend that yields good chocolate, and the formulas are, of course, a secret.