A water tube is adapted for use in a steamer. The steamer has a steam chamber and a heating plate that is disposed under the steam chamber. The water tube includes a tubular main body, a dividing body, and a plurality of ribs. The main body defines a channel extending in a flowing direction. The channel has an inlet portion, and an outlet portion that is opposite to and disposed downstream of the inlet portion, and that is adapted to extend into the steam chamber. The dividing body is inserted into the outlet portion of the channel. The ribs extend from the dividing body to the main body, and cooperate with the dividing body to divide the outlet portion of the channel into a plurality of outlet holes.