Cao lau noodles are carefully made from local new rice not stocked one. Water used to soak rice must be taken from wells in the Ba Le Village; noodles thus will be soft, enduring and flavored with special sweet-smelling. In addition, meat used to prepare for Cao lau must be loin or trotter.

Dry pancakes used must be thick and have much sesame. Greasy coconut quintessence and bitter green cabbage are also indispensable. The so-called genuine Cao lau Hoi An must satisfy all above requirements.