Can we eat the moldy food?

You can’t see the mold ≠ no mold
The moldy part we see is actually the part where the mycelium of mold is completely developed and formed. There are already many invisible molds around there.
Moreover, the cytotoxin produced by mold will spread in food, and the scope of diffusion is related to the texture, water content and the severity of mildew of food. It’s really difficult to estimate the extent of diffusion with naked eyes alone.

High temperature heating can not kill mold
High temperature heating can indeed sterilize, disinfect and remove many molds, but it is not necessarily effective for some molds and toxins.
For example, patulin can exist in apples, peaches, pears, bananas, grapes and other fruits and fruit juices. After sterilization, the toxin content will be reduced, but it cannot be completely eliminated.
So the safest and most reliable choice to treat moldy food is to throw it all away!