Unverified90% confidenceDecision RuleTime unknown
核桃仁颜色越浅越新鲜，呈黄白色为佳；发黄发暗甚至带黑斑说明氧化或存放过久，油脂已酸败，会有明显哈喇味
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90%
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Long-term
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Unverified核桃仁颜色越浅（浅黄琥珀色）越新鲜，若仁色发黑、发红或油亮发暗，说明已氧化哈败，油脂酸败会产生刺喉的哈喇味93% similarUnverified果仁颜色偏白偏浅为新鲜，若果仁表面发黄、发暗或带黑斑，说明存放过久或氧化，营养流失且口感变涩91% similarUnverified去壳核桃仁颜色应为浅黄至琥珀色，若发白或颜色过于均匀漂亮，可能经过漂白硫熏处理；仁色发黑、油亮渗油则已氧化哈败87% similarUnverified艾绒颜色越金黄越纯净（去除杂质多），发绿发青多为新艾或杂质多，发黑可能受潮霉变；正品陈艾应呈土黄或金黄色、绒软无枝梗、气味清香不刺鼻87% similarUnverified买核桃仁看仁色和油脂哈喇味：果仁应呈淡黄至浅琥珀色，若发深褐、发黑或有苦涩/油漆味说明已氧化酸败（不饱和脂肪酸变质），漂白过白的仁反而可疑84% similar
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