煮之前提前泡发，就容易煮烂，如果没泡就不容易煮烂。
下面介绍三豆汤的做法供参考，首先准备材料：绿豆：20克、黑豆：20克、赤小豆：20克、冰糖：适量。
1、赤小豆、绿豆、黑豆用清水清洗干净，然后沥干水分备用。
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2、把洗好的赤小豆、黑豆、绿豆放入容器里，然后加入适量的温水，浸泡1小时。
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3、把泡好的赤小豆、绿豆、黑豆放入高压锅里，然后倒入适量的清水。
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4、盖上盖子，大火煮至上气，然后转中小火煮10分钟。
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5、出锅前加入适量的冰糖调味，即可盛出食用。
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