No, they don't eat it. Mine was jet black after molting, and hairless. That's how I was certain.
Just remember, before they molt, they look dead. Even on there backs with legs curled up. Don't touch them. They are very cranky and vulnerable at this point.
I used an ice cream container over them and slide the lid under. Gets harder when they are almost as big as the container. :-) Ps....does your mum know yet????