Unverified78% confidenceDecision RuleTime unknown
漂白（硫磺熏或双氧水处理）的丝瓜络外观洁白但纤维韧性下降、更易断丝掉屑，接触餐具者建议选未漂白的自然黄褐色款，可用水泡后闻是否有刺鼻酸味判断硫磺残留
1
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78%
Confidence
Long-term
Relevance
-
First Seen
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Unverified选购时注意参体是否饱满、须根完整、无霉斑虫蛀、无硫磺熏蒸异味；有硫磺味或色泽过白可能经过化学处理81% similarUnverified颗粒圆整、壳呈土黄褐色且无异常光泽的桂圆干为自然晾晒品；壳色过白发亮、有刺鼻酸味的多为硫熏品，硫熏桂圆开袋后咬肉有涩酸味79% 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79% similarUnverified开心果、巴旦木等带壳坚果若出现异常洁白，可能经过漂白处理；自然色应略带黄褐，过白需警惕二氧化硫或双氧水漂白78% similarUnverified散装漂白巴旦木（去壳仁颜色异常洁白均一、无自然色差）可能经硫处理，正常原味仁应有轻微色差和自然纹理，过度均匀纯白需警惕77% similar
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