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干银耳vs鲜银耳：鲜银耳出胶快（约30分钟出胶）、口感嫩滑但保质期仅3-7天需冷藏且易变质；干银耳需泡发1-2小时、炖煮1小时以上出胶，但耐储存、胶质更醇厚。追求方便快煮选鲜银耳，需囤货或做浓稠银耳羹选干银耳

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