Because what you see that we call mold is the fruit of a vast root system. In hard cheese if you can cut an inch or two in every direction from the mold you likely will get the root system with it. With a soft cheese (or bread) that root system is likely spread through the food pretty thoroughly.
Hard cheeses are dense enough that the mold can only grow on the surface. If you cut off the moldy parts and discard them, you’re getting rid of the vast majority of the mold. There will likely be some spores on the rest of the cheese, but not enough to harm you.
Soft cheeses are much less dense, meaning that the mold can penetrate below the surface more easily. If you can see mold on top then it’s likely throughout the cheese, and thus it’s much less safe to eat.
Why is it a no for soft cheese?
Because what you see that we call mold is the fruit of a vast root system. In hard cheese if you can cut an inch or two in every direction from the mold you likely will get the root system with it. With a soft cheese (or bread) that root system is likely spread through the food pretty thoroughly.
Hard cheeses are dense enough that the mold can only grow on the surface. If you cut off the moldy parts and discard them, you’re getting rid of the vast majority of the mold. There will likely be some spores on the rest of the cheese, but not enough to harm you.
Soft cheeses are much less dense, meaning that the mold can penetrate below the surface more easily. If you can see mold on top then it’s likely throughout the cheese, and thus it’s much less safe to eat.