Hi Michelle
I would, since it is hot where you are, suggest putting it in the fridge overnight. Take it out a couple of hours before you want to ganache tomorrow. If it is not soft enough, pop it into the microwave (but only for 5 – 10 seconds at a time – do not be tempted to do it for longer as the chocolate will burn very quickly!) then take it out and give it a good mix (by hand). Continue until it is the right thickness for you to cover your cake. Best consistency I find is when it coats a spoon nicely. Hope this is helpful and good luck. Janet at 4hcakes
For Heaven's Cakes - 4hcakes - Scotland