Unverified70% confidenceSolutionTime unknown
鉴别硫熏茯苓可取一小块置于密封杯中滴少量水，静置后开盖闻，硫熏品会散出明显酸味或火柴燃烧味；也可用pH试纸测浸泡水，硫熏品浸出液偏酸性
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70%
Confidence
Long-term
Relevance
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Unverified无硫工艺枸杞保质期和抗氧化变色能力不如硫熏产品，开封后需密封冷藏保存，否则容易发黑受潮74% similarUnverified强酸性清洁剂（pH<2，如含盐酸/草酸）去除水垢皂垢效果强，但会腐蚀抛光砖表面釉层导致失光发雾，抛光砖/釉面砖应选pH 5-9的中性或弱酸配方72% similarUnverified产品为无硫工艺干货，适合直接干嚼或泡水，对硫熏残留敏感的消费者可放心选择72% similarUnverified无水冷喷式扩香仪的精油会在气道和玻璃瓶内壁结垢，选购需确认精油通道易拆卸清洗，否则残留油垢会串味且滋生细菌，长期不清洗会堵塞喷嘴72% similarUnverified水垢、皂垢、尿碱属碱性污垢，必须用含盐酸/柠檬酸/氨基磺酸的酸性清洁剂（pH＜3）才能溶解；普通碱性/中性清洁剂对硬水垢基本无效71% similar
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