Unverified85% confidenceDecision RuleTime unknown
干货豆类保质期通常1-2年但陈豆吸水差、煮不烂，选购看豆粒是否饱满有光泽、无虫蛀霉点，当年新豆表面色泽鲜亮；老陈豆颜色暗淡发乌需提前长时间浸泡
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85%
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Long-term
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Unverified选购干豆看粒径均匀度和当年新豆：新豆表皮有光泽、脐部（豆眉）呈浅色；陈豆脐部发黑、颗粒暗淡，泡发后出浆率下降且有豆腥味，建议看包装生产日期在6个月内84% similarUnverified选购时看当年新豆：新绿豆表皮鲜绿有光泽、颗粒硬实，陈豆颜色暗黄发白且易生虫，煮制时新豆30-40分钟即可开花，陈豆需1小时以上仍不易熟80% similarUnverified自制豆浆标准路径：选当年非转基因东北黄豆→干豆冷水泡发6~8小时（夏季冷藏）→豆水比1:15破壁机加热熬煮→充分煮沸8分钟以上破坏胰蛋白酶抑制剂避免中毒→过滤或保留豆渣78% similarUnverified常温利乐包豆浆经过超高温灭菌可存6-9个月但风味损失大；低温冷藏鲜豆浆保质期仅3-15天、豆香更浓，两者不可按同一标准比较77% similarUnverified常温利乐包豆浆多用UHT超高温灭菌+无菌灌装，可无防腐剂常温存放6-9个月；冷藏鲜豆浆保质期通常仅3-15天，需看到「巴氏杀菌」+冷链标识才具备鲜度优势77% similar
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