To preserve his gourds, he devised a three-step process. The first step was boiling. Though gourds may seem woodlike when ripe, they're still susceptible to insects, and over time still go off.
瓠瓜的防腐處理約有三道手續，首先用「水煮法」，因為瓠瓜果體成熟後雖然會木質化，但時日一久，還是會遭蟲蛀、變色。