If you aren’t going to use the ganache on the day it was made, cover it with plastic wrap after it is set.
Chocolate will not properly temper if your tools (or hands) are not bone-dry and clean. Use extra caution when handling the chocolate.
Work quickly when enrobing the chocolate, as it will begin to set in the bowl.
Truffles can be stored at room temperature, gently wrapped in plastic wrap for up to a week. Alternatively, they can be stored in the refrigerator for up to a month. Allow refrigerated truffles to come to room temperature before serving. If they discolor, they are still safe to eat - the moisture of the refrigerated air can cause this.