豆角上长黑斑还能吃吗

不可以吃。

豆角长黑斑是感染黑斑病菌，表现为豆角皮长有褐色和黑褐色斑点。斑点里含有酮和酮醇等毒素，会损害肝脏，煮、蒸或烤等办法均不能将其杀灭，被摄入人体后对肝脏危害很大。

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