Unverified85% confidenceDecision RuleTime unknown
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
1
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85%
Confidence
Long-term
Relevance
-
First Seen
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Unverified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80% similarUnverified白芸豆(cannellini/lima bean)干货选颗粒饱满无皱缩、颜色均匀乳白的，表皮大量皱纹说明陈豆，煮制时间会显著延长且不易软烂；陈豆需提前浸泡8小时以上76% similarUnverified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74% similarUnverified鹰嘴豆、白芸豆等大颗粒豆需浸泡8小时以上且皮薄易碎不宜储陈；红豆、黑豆等小粒硬豆耐储存性更强，家庭常备可优先选小粒品种70% similarUnverified生瓜子花生（未炒制）适合家庭自炒或煮，保存期长可达1年；熟制成品保质期通常6-9个月，且开封后油脂氧化速度快，购买时应看生产日期越新越好69% similar
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