Grate the couverture
Please note that grated couverture is very moisture sensitive. Due to the collectively large surfaces of the shreds, it tends to easily absorb moisture. Melted couverture then could become grainy and thick and can no longer be used as a coating. To minimize the grated couverture's exposure to air, store the grated couverture which you are not using in an airtight container.
Melt 2/3 of the couverture
Tempering process
Remove the top of the double boiler containing the melted couverture from the heat source. Add the remaining part of grated couverture (the 1/3) and stir slightly until the couverture is melted. This will cool the couverture to about 26 28°C (79 82°F).
Rewarm couverture to working temperature
Place the double boiler over warm, not simmering water, and warm again carefully, stirring slightly until the correct temperature:
Milk Couverture - 29-31°C
Semi-sweet Couverture - 30-32°C
White Couverture - 29-30°C - CHECK THERMOMETER!
Working process
Maintain above working temperature during your working process. Especially suitable for this purpose is an appliance with automatic temperature control. Should the temperature exceed 32°C, begin over again with the tempering process.

