Core Rot in Apples

Lately I’ve been noticing a white, furry coating in the core of apples that looks like mold. So I wanted to ask you what that is and whether it is still advisable to enjoy the apples – also for children, the sick and the elderly?

According to your description, the apples are probably affected by core rot.

This occurs when mold spores get into the calyx of the apple blossom. During the ripening phase of the apple, the mold can grow. First, a fine network forms in the core. Later, the infestation spreads further into the flesh and finally becomes visible on the surface, mostly at the base of the stem or calyx of the apple.

Some of the molds that cause core rot can produce harmful toxins. However, if the mold is only visible in the core, it is sufficient to generously cut out the case. If the flesh is infested, the apple should no longer be eaten.

If you accidentally eat an infested area, there are no health consequences to be expected. Chronic exposure to mold toxins is relevant, since some of these fungal toxins can damage the liver, for example. Against this background, it makes sense to pay more attention to the quality of the apples, especially with children.