Can you eat the part below if mold has grown on top of mulberry jam?

Generally speaking, if mold appears on the surface of mulberry jam, the portion underneath should usually not be consumed. The specific analysis is as follows:

Once opened, mulberry jam comes into contact with air and may also be exposed to harmful substances such as bacteria and mold spores in the air. Prolonged exposure allows these microorganisms to grow and multiply. If the jam has been improperly stored or kept for too long after opening, visible mold fuzz or spots may develop. Even if the visibly moldy part is removed, invisible pathogenic microorganisms may still remain, making the underlying portion unsafe to eat.

Consuming such jam may allow harmful substances to irritate the gastrointestinal tract, potentially causing symptoms such as nausea, vomiting, and loss of appetite. Therefore, moldy mulberry jam should be discarded promptly to avoid accidental ingestion and adverse reactions.

In daily life, after opening mulberry jam or similar fruit preserves, care should be taken to keep moisture out. When not in use, the container should be sealed promptly and stored in the refrigerator to prevent spoilage.