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Fav十万个为什么
为什么食盐不宜存放时间过长？
食盐不宜存放时间过长主要是因为易受潮结块、可能受到污染以及营养物质的流失。
1、易受潮结块：食盐具有很强的吸湿性，长时间存放容易吸收空气中的水分而受潮结块，影响使用。
2、可能受到污染：存放时间过长，食盐可能接触到包装材料中的有害物质或受到环境污染，存在安全隐患。
3、营养物质流失：虽然食盐主要成分是氯化钠，但也含有少量其他矿物质，长时间存放可能导致这些营养物质流失。
总结：食盐不宜存放时间过长主要是因为易受潮结块、可能受到污染以及营养物质的流失。
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