Improper storage conditions: when storing peaches, if the environment is humid or the temperature is too high, the peach core may be damp, which may lead to mildew.

Invasion of pests and diseases: In the process of peach growth, if attacked by pests and diseases, the interior of peach pit may be destroyed, forming conditions for rot and mold growth.

Quality problems: Some peaches may be damaged during picking and transportation, resulting in damage to the inside of the peach pit and mildew.

Too long storage time: peaches are perishable fruits. If stored for too long, they may naturally rot in the peach pit.

In order to avoid this situation, when purchasing peaches, we should choose fruits with complete appearance and no obvious damage, and keep them in suitable environmental conditions. If peach stones are found to be rotten and moldy, it is best not to eat them, so as not to cause adverse effects on health.