Just wondering how long a cake will last once made without being decorated?
And once have been ganached and covered with fondant how long the actual cake is good for?
How long is a piece of string?
Seriously there are some things in cake decorating that you need to figure out yourself - by testing your own product.
Can't tell you the number of cakes i have made in the name of 'testing' - I know how long they keep for in what conditions - whether they freeze successfully - and how long before mould appears
There are NO shortcuts for somethings - this is ONE of them !