推荐回答（3个）
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。
/iknow-pic.cdn.bcebos.com/0b55b319ebc4b74560d64c97c3fc1e178b8215f4"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/0b55b319ebc4b74560d64c97c3fc1e178b8215f4?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/0b55b319ebc4b74560d64c97c3fc1e178b8215f4"/>
鼻子闻：正宗黑米用温水泡后有天然米香，染色米有异味。
/iknow-pic.cdn.bcebos.com/342ac65c1038534373717ca09f13b07ecb8088f1"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/342ac65c1038534373717ca09f13b07ecb8088f1?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/342ac65c1038534373717ca09f13b07ecb8088f1"/>
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。
/iknow-pic.cdn.bcebos.com/b64543a98226cffc38b14433b5014a90f703ea9c"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/b64543a98226cffc38b14433b5014a90f703ea9c?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/b64543a98226cffc38b14433b5014a90f703ea9c"/>
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。
/iknow-pic.cdn.bcebos.com/267f9e2f0708283820c12795b499a9014d08f167"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/267f9e2f0708283820c12795b499a9014d08f167?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/267f9e2f0708283820c12795b499a9014d08f167"/>
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。
/iknow-pic.cdn.bcebos.com/cb8065380cd7912318e66ef5a1345982b2b78029"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/cb8065380cd7912318e66ef5a1345982b2b78029?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/cb8065380cd7912318e66ef5a1345982b2b78029"/>
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。
/iknow-pic.cdn.bcebos.com/e7cd7b899e510fb303c18c16d533c895d0430c52"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/e7cd7b899e510fb303c18c16d533c895d0430c52?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/e7cd7b899e510fb303c18c16d533c895d0430c52"/>
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。
/iknow-pic.cdn.bcebos.com/5882b2b7d0a20cf434d5ab447a094b36adaf99e7"target="_blank"title="点击查看大图"class="ikqb_img_alink">/iknow-pic.cdn.bcebos.com/5882b2b7d0a20cf434d5ab447a094b36adaf99e7?x-bce-process=image%2Fresize%2Cm_lfit%2Cw_600%2Ch_800%2Climit_1%2Fquality%2Cq_85%2Fformat%2Cf_auto"esrc="https://iknow-pic.cdn.bcebos.com/5882b2b7d0a20cf434d5ab447a094b36adaf99e7"/>
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。
市面上售卖的黑米，如何才能辨别真假？一起来看看吧！
一个特点是花青甙，花青甙是水溶性物质，所以，黑米放到水里一定有红紫色颜色出来，颜色越深越好，没有颜色或很浅就是假的。这点是很多人的误区，以为掉色就是假的。真黑米的色泽紫黑亮丽，表皮呈片状，手感光滑细腻，而染色的黑米则没有光泽，表皮为粉状。
另一个特点是真黑米的种皮带有油光，且种皮颜色不可能均匀一致，因为，即使同一株稻穗成熟度都有差异，成熟度差的稻米皮层颜色浅。人工生产的假黑米一定是颜色均匀，仿造不出自然生长的情况。真黑米的米心为白色，而染色的大米是米心为黑色，因为染料的颜色会渗透到普通大米的透明米心中，进而变成黑色。
此外，看泡米水，真黑米的泡米水为紫红色，而染色黑米的泡米水颜色就像墨汁一样呈黑色。真黑米用醋泡就会变红，而染色黑米则不会有任何变化。
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