Unverified90% confidenceCautionTime unknown
玉竹干片颜色过白、表面有白色结晶粉末、闻起来有刺鼻硫磺味的，是硫熏漂白处理，长期食用有害，应选自然晒干的黄褐色片
1
Sources
90%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified颜色过白、有刺鼻硫磺味的干芡实可能经硫磺熏制漂白，正常干芡实为米白偏黄或带浅褐色，闻起来是淡淡清香或无味90% similarUnverified颜色过于雪白、颗粒均匀无自然色差的干芡实需警惕硫磺熏制或漂白处理，取一颗闻有刺鼻酸味即为硫熏；天然干芡实允许有轻微色差和淡淡豆香84% similarUnverified颜色异常雪白的椰蓉可能经过硫熏漂白，优质椰蓉应为自然乳白偏微黄，闻起来是清新椰香而非刺鼻或无味84% similarUnverified避免购买颜色过白、断面发亮、有明显刺鼻酸味的黄芪，这类多为硫磺熏制，长期食用有害；优质黄芪断面呈淡黄白色、气味清香微豆腥83% similarUnverified传统日晒或低温烘干的玉竹保留天然油润感、闻之有淡淡甜香；硫熏玉竹颜色异常洁白、闻有刺鼻酸味，虽卖相好但可能含二氧化硫超标，选购时优先选'无硫'标注产品83% similar
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