Unverified85% confidenceFactTime unknown
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
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified核桃仁颜色以浅黄（琥珀色）为佳，仁色发黑、发暗或有黑斑说明陈货或霉变；掰开后内部若有黄绿色霉点可能含黄曲霉素，绝对不可食用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86% 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86% similar
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