Unverified90% confidenceDecision RuleTime unknown
购买时观察包装内水饺是否结成大块冰坨或表面有厚霜：散粒不粘连说明冷链完好，结块/厚白霜说明经历过化冻复冻，口感和卫生都下降
1
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90%
Confidence
Long-term
Relevance
-
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Unverified购买时检查包装内是否有大量冰霜或包子结块粘连：这是冷链断裂反复化冻的迹象，此类产品面皮已失水，蒸后必然干硬89% similarUnverified购买时检查桶盖是否鼓包变形、桶壁是否有霜冻块——若表面结满厚霜或整体软塌变形，说明运输储存中经历过化冻再冻，口感必然打折，应避免购买86% similarUnverified选购时观察包装内是否有大量冰霜或豆粒结团，结霜严重通常说明经历过反复解冻再冻结，品质和口感会明显下降86% similarUnverified购买冷冻羊排/羊腿注意包装内是否有大量冰晶或血水结冰，冰晶多说明经历过反复冻融或温度波动，解冻后出水多、口感变柴84% similarUnverified购买速冻豆沙包看包装是否有霜或结冰块，大量冰霜说明经历过化冻再冻，面皮和馅料品质已受损；正常速冻品应颗粒分明、不粘连结块84% similar
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