Apple cores are the center part of an apple that is connected to the vine of the apple tree.
It is the part which helped the apple to grow and where it grew from.
So can chinchillas eat apple cores?
No they can’t unfortunately.
There is a risk that they get stuck in a chinchilla’s throat and so they are best avoided as a food for them. There are far better foods for them.
Just stick to feeding them the flesh of the apple, they will enjoy it a whole lot more.
Strip away the core and the seeds to avoid any risk of choking.