He tried it out with a large gourd, but forgot to consider that things expand when heated-during boiling, the gourd burst open, so the whole thing was a write-off. He tried again, this time making holes in the gourd to release the pressure, and the process worked without a hitch.
於是他燒了一大桶水煮瓠瓜，剛開始因沒有考慮到物體冷縮熱脹的原理，水煮開後瓠瓜一個個爆破而全數報銷，後來在瓠瓜身上鑽洞使之透氣，才順利完成水煮。