Unverified90% confidenceDecision RuleTime unknown
闻香辨真伪：正品当归有浓郁特有香气（甘中带辛），久闻不刺鼻；若有明显硫磺酸味或刺激性气味，说明经硫磺熏蒸；无香或霉味则为陈货/劣质货
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90%
Confidence
Long-term
Relevance
-
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Unverified闻气味辨硫熏：正常炮制黄精有焦糖香甜气；若闻到刺鼻酸味、酸辣感或异常发白发亮，可能经硫磺熏制以防腐增色，不宜购买91% similarUnverified闻香辨质：抓一把闻应有清新坚果香，若有刺鼻化学味（漂白剂）、霉味或过重香精味均应放弃86% similarUnverified干菌类香味应为自然菌香或烘干的焦香，若有刺鼻酸味、霉味或明显硫磺味（漂白剂气味），说明存在熏硫或霉变，不要购买86% similarUnverified香味浓度与防霉效力无关：强香型多为香精掩盖霉味，真正抑霉的是无味或淡香的功能成分。对香精敏感或有呼吸道疾病者应选无味/低敏配方84% similarUnverified香气浓度与除味真实性成反比：浓香型往往用香精掩盖而非分解异味，异味源仍在；建议选无香或淡香型判断真实除味效果84% similar
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