热牛奶，需要操作者用碗装好牛奶，然后烧开水，水烧开后倒入盆中，将之前准备好的牛奶放入盆中即可。具体操作步骤如下。
1、首先，在碗中倒入适量的牛奶。如下图所示。
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2、第二，使用水壶，加入适当的自来水，进行煮沸。如下图所示。
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3、第三，将煮开后的热水装入铁盆中。如下图所示。
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4、第四，将小口径的碗放入铁盆中，要注意的是铁盆中的水位需要比奶的水位高。如下图所示。
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5、最后，10分钟后，牛奶就加热完成。如下图所示。
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注意事项：
装牛奶的碗，必须使用瓷碗，瓷碗具有很好的导热性，能够全面吸收热水的热量。
