Unverified88% confidenceCautionTime unknown
色泽过于鲜艳统一、无自然色差的干花需警惕硫熏或染色处理；硫熏花卉会残留二氧化硫（可闻到刺鼻酸味），泡水后水色异常鲜艳者应弃用
1
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88%
Confidence
Long-term
Relevance
-
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Unverified警惕熏硫染色红枣：颜色过分鲜红光亮、闻有刺鼻酸味、水泡后掉色明显的多经硫磺熏或色素染，正常自然晒干红枣色泽暗红不均匀87% similarUnverified无硫烘干工艺比硫磺熏蒸更安全，但花色偏暗黄而非亮黄，若收到颜色过于鲜亮的菊花反而要警惕是否硫熏87% 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85% similarUnverified不要购买颜色过分乌黑发亮、有刺鼻酸味或硫磺味的韭菜籽，可能经染色或硫熏处理以掩盖陈化84% similarUnverified警惕经过漂白处理的核桃仁：色泽异常均匀洁白、闻有刺激性气味的可能用硫磺或双氧水熏漂过，天然核桃仁色泽应有深浅不一的自然过渡83% similar
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