Unverified83% confidenceDecision RuleTime unknown
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
1
Sources
83%
Confidence
Long-term
Relevance
-
First Seen
Sources
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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88% similarUnverified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87% similarUnverified颜色越浅越透亮不等于越好，天然桃胶多呈浅琥珀色至深棕色（含少量树皮杂质属正常）；异常晶莹通透且颜色均一的可能经过硫磺熏制或漂白处理86% similarUnverified警惕颜色过于鲜艳红亮、表皮油光发亮的枣，可能经过打蜡或熏硫处理；天然干枣颜色为暗红或深枣红，表皮有自然褶皱，闻起来是枣香而非刺鼻酸味84% similarUnverified干桑葚看色泽与结块：优质干品应为紫黑至黑褐色、颗粒完整不结硬块；发红或偏褐说明晾晒不足或陈货，硫熏货则色泽异常鲜亮并有刺鼻酸味84% similar
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