Unverified85% confidenceFactTime unknown
真空包装冷藏年糕保质期通常30-90天，常温软包装年糕（充氮/加防腐）可达6-12个月，速冻年糕可存12个月以上；开封后无论哪种都需冷藏并3天内吃完
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85%
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Unverified真空包装水磨年糕保质期通常6-9个月，含防腐剂或需冷藏；无添加的鲜年糕（如现做宁波年糕）冷藏保质期仅3-7天，冷冻可存2-3个月，购买时看配料表判断是否需即食93% similarUnverified真空包装冷藏年糕保质期通常30-90天，常温软包装年糕含防腐剂可达6-12个月；追求米香口感应选冷藏短保产品，配料表应只有大米/糯米+水92% similarUnverified真空/水浸装年糕(保质期通常6-9个月)久放会发酸、表面发黏，开封后需冷藏并3-5天内吃完；冷冻装最耐存但解冻后需尽快烹饪避免开裂91% similarUnverified散装/简装现烤月饼保质期通常仅7-15天，需冷藏；工业化真空+脱氧剂包装可达60-90天，送礼且不确定对方何时食用应选保质期≥45天的独立包装款90% similarUnverified真空包装水磨年糕（如宁波慈城年糕）常温保质期6-9个月，冷藏可延长；散装现做水磨年糕最鲜但需冷藏2-3天内食用，久放会开裂发硬89% similar
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