Unverified93% confidenceDecision RuleTime unknown

必须全程冷藏保存，保质期仅约21天，断冷链后活菌数量快速下降，购买时需确认商超冷柜温度和生产日期

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93%

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Unverified冷链保鲜与保质期长短存在权衡：真正含高活菌的产品保质期短（冷藏21-28天），保质期越长（半年以上）通常意味着灭活或菌株活性弱，二者难兼得84% similar Unverified活菌益暖越足风味越复杂但保质期越短：冷藏活菌泡菜/天贝保质期通常仅15-45天，追求长保质期（12个月以上常温）必然意味着经过灭菌处理，二者不可兼得83% similar Unverified低温活菌酸奶保质期通常为14-28天，需2-6℃冷藏；一旦脱冷链数小时活菌数会显著下降，选购时避开货架靠外侧、临近过期或包装胀袋产品82% similar

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