Tempering chocolate involves controlling the crystallization of cocoa butter to ensure the chocolate has a shiny appearance and snap when broken. The process involves:
1) Melting chocolate to 45°C then cooling it to 32°C for dark or 30°C for milk/white chocolate.
2) Adding 15-20% chocolate callets at room temperature to induce crystallization.
3) Continuing to stir until the temperature reaches 34°C for dark or 33°C for milk/white chocolate to obtain properly tempered chocolate.