I made a SMBC fondant covered cake and after delivery to the client, a huge air bubble suddenly appeared on the side.
It was a hot day, but the cake was delivered by me in an air conditioned car, shielded from the sun.
I was also a guest at the party, so I tried to pop the bubble, but the buttercream had become too soft to fix the fondant hole.
Any ideas why this happened? Is SMBC a bad choice under fondant? BTW I had used marshmellow fondant. Would a ready made brand like Satin ice behaved better?
Just starting out my business, any help would be really appreciated! Have a lot to learn in cake decorating!