Unverified80% confidenceDecision RuleTime unknown
冷藏盒装豆腐保质期一般3-7天，若标注保质期超过15天甚至常温可存放，说明添加了防腐剂或经过高温灭菌（灭菌豆腐口感变绵、豆香流失）
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80%
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Long-term
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Unverified常温保存的盒装豆腐（如内酯豆腐）多经UHT超高温灭菌，保质期可达3-6个月；冷藏水浸豆腐保质期通常仅3-7天，购买时优先看是否需冷藏而非只看日期长短96% similarUnverified常温盒装豆腐（无菌利乐包）保质期可达6-9个月但开封后须冷藏48小时内食用；生鲜散装豆腐冷藏仅1-2天，购买当天食用最佳93% similarUnverified盒装豆腐的保质期与工艺挂钩：巴氏杀菌冷藏豆腐保质期约7-15天需0-4℃冷藏；高温灭菌（UHT）常温盒装豆腐可存3-6个月免冷藏，但豆香和口感略逊于冷藏鲜豆腐93% similarUnverified常温盒装豆腐（利乐包/无菌盒装）通过高温灭菌+无菌灌装实现无防腐剂常温保存6-9个月，配料表只有大豆、水、凝固剂即为真正无添加；冷藏盒装保质期通常仅3-7天93% similarUnverified盒装无菌豆腐（利乐包/盒装内酯豆腐）常温可保存3-6个月，开封后需冷藏当天吃完；散装现做豆腐冷藏保质期仅1-2天。囤货或独居少量食用选盒装，追求口感风味选现做散装93% similar
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