Unlike many Western noodles and pastas, Chinese noodles made from wheat flour are usually made from salted dough, and therefore do not require the addition of salt to the liquid in which they are boiled. Chinese noodles also cook very quickly, generally requiring less than 5 minutes to become al dente and some taking less than a minute to finish cooking, with thinner noodles requiring less time to cook. Chinese noodles made from rice or mung bean starch do not generally contain salt.