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Fav十万个为什么
为什么巧克力放冰箱会起白霜？
简单的摘要：巧克力放冰箱会起白霜的原因主要是糖霜的形成、脂霜的形成以及温度和湿度的剧烈变化。
1、糖霜的形成：巧克力中的糖分在潮湿环境下会重新溶解，当水分蒸发后，糖分会结晶并附着在巧克力表面，形成白霜。
2、脂霜的形成：巧克力中的可可脂在温度变化时会发生晶型变化，部分低熔点的可可脂会融化并迁移到表面，形成白霜。
3、温度和湿度的剧烈变化：将巧克力从冰箱的低温环境直接拿到室温下，会导致表面温度和湿度的剧烈变化，从而加速糖霜和脂霜的形成。
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