Many people believe that if a fruit becomes moldy, it’s safe to eat as long as the moldy part is cut away. However, this practice can pose serious health risks. Mold often spreads far beyond what’s visible to the naked eye. Even if only a small spot appears moldy on the surface, fungal threads (hyphae) may have already penetrated deep into the flesh, potentially producing harmful mycotoxins—such as patulin—that are heat-resistant and difficult to eliminate through washing or cooking. Long-term exposure to these toxins can damage the liver and kidneys and may even increase cancer risk.This is especially true for soft, high-moisture fruits like strawberries, peaches, grapes, and apples, where mold can spread rapidly through the juice. Therefore, the safest approach is to discard the entire fruit once mold is detected, rather than just trimming the affected area. Exceptions might include thick-skinned citrus fruits (like oranges or grapefruits), where surface mold hasn’t reached the edible pulp—but caution is still advised.In short, don’t risk your health for the sake of saving a little food. When in doubt, throw it out.
很多人认为，水果发霉后只要把发霉的部分削掉，剩下的部分仍然可以安全食用。然而，这种做法其实存在健康隐患。霉菌在水果内部的扩散往往远超肉眼可见的范围。即使表面只有一小块霉斑，其产生的菌丝可能已经深入果肉内部，甚至释放出有毒的代谢产物——霉菌毒素（如展青霉素）。这些毒素耐热性强，普通清洗或加热难以完全去除，长期摄入可能损害肝脏、肾脏，甚至具有致癌风险。尤其对于水分含量高、质地柔软的水果（如草莓、桃子、葡萄、苹果等），霉菌更容易通过汁液快速蔓延。因此，一旦发现水果发霉，最安全的做法是整颗丢弃，而非仅切除霉变部分。当然，像柑橘类或带硬壳的水果（如柚子、橙子）若表皮轻微发霉且果肉未受影响，可谨慎处理后食用，但仍需格外小心。总之，为了健康着想，切勿因节俭而忽视潜在风险。发霉水果最好整颗丢弃，避免“省小钱，吃大亏”。
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