如何分辨真假黑米？
分辨真假的方法
用手搓：用手搓一搓米，看手上有没有染料，如果有黑色染料，就是假米。
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鼻子闻：正宗黑米用温水泡后有天然米香，染色米有异味。
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看颜色：正宗的黑米表皮是有光泽的，颜色有深有浅，而染色的黑米却没有光泽，颜色一致。
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看表皮：正宗的黑米用指甲抓下来的表皮是片状的。如果是粉末状的那就是劣质黑米。
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看米心：正宗黑米的米心是白色的。普通大米的米心是透明的，没有颜色。如果染色的黑米是用普通大米染成的，那么染料的颜色会渗透到米心里去，变成黑色。
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看泡米水：正宗黑米的泡米水是紫红色的，稀释之后也是紫红色或偏红色。如果泡出的水像墨汁一样经过稀释以后还是黑色，那肯定就是假米了。
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加白醋：黑米水遇到碱会变绿，遇酸会变红。正宗的黑米水遇到酸就会立刻变红。随机取一些粒黑米放入杯中，往杯子中倒白醋，充分搅拌，一会儿后白醋变红为真黑米,变黑为假黑米，有少量红色并黑色者为真黑米被提取花青素后又染黑所致。
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拓展资料：
黑米是一种药、食兼用的大米，属于糯米类。黑米是由禾本科植物稻经长期培育形成的一类特色品种。粒型有籼、粳两种，粒质分糯性和非糯性两类。糙米呈黑色或黑褐色。
黑米外表墨黑，营养丰富，有“黑珍珠”和“世界米中之王”的美誉。我国不少地方都有生产，具有代表性的有陕西黑米、贵州黑糯米、湖南黑米等。食用价值高，除煮粥外，还可以制作各种营养食品和酿酒。
