Chen Jung-wu of the Taitung Agricultural Improvement Station says that the ordinary lily should be soaked for thirty or so minutes prior to eating; this should wash away the sulphur dioxide.
「乾金針在煮食前最好能充分清洗」，台東農業改良場場長陳榮五則表示二氧化硫是可溶於水的物質，只要仔細清洗，大部分可以去除。