熱牛奶，需要操作者用碗裝好牛奶，然後燒開水，水燒開後倒入盆中，將之前準備好的牛奶放入盆中即可。具體操作步驟如下。
1、首先，在碗中倒入適量的牛奶。如下圖所示。
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2、第二，使用水壺，加入適當的自來水，進行煮沸。如下圖所示。
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3、第三，將煮開後的熱水裝入鐵盆中。如下圖所示。
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4、第四，將小口徑的碗放入鐵盆中，要註意的是鐵盆中的水位需要比奶的水位高。如下圖所示。
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5、最後，10分鐘後，牛奶就加熱完成。如下圖所示。
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註意事項：
裝牛奶的碗，必須使用瓷碗，瓷碗具有很好的導熱性，能夠全面吸收熱水的熱量。