A steamer including: a casing; a heating plate that is coupled to the casing, and that cooperates with the casing to define a steam chamber therebetween; and a water tube mounted in said casing and extending into said steam chamber, said water tube including a tubular main body that defines a channel extending in a flowing direction, the channel having 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, wherein the water tube further includes: a dividing body that is inserted into the outlet portion of the channel; and a plurality of ribs that extend from the dividing body to the main body, and that cooperate with the dividing body to divide the outlet portion of the channel into a plurality of outlet holes, such that water which enters the channel from the inlet portion is divided by the dividing body and the ribs into a plurality of streams that are adapted to be discharged respectively via the outlet holes into the steam chamber to fall onto the heating plate; wherein the dividing body has a main section, and a tip end section that extends from the main section toward the inlet portion of the channel, and that tapers away from the main section; and the ribs extend from the main section of the dividing body to the main body. a casing; a heating plate that is coupled to the casing, and that cooperates with the casing to define a steam chamber therebetween; and a water tube mounted in said casing and extending into said steam chamber, said water tube including a tubular main body that defines a channel extending in a flowing direction, the channel having 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, wherein the water tube further includes: a dividing body that is inserted into the outlet portion of the channel; and a plurality of ribs that extend from the dividing body to the main body, and that cooperate with the dividing body to divide the outlet portion of the channel into a plurality of outlet holes, such that water which enters the channel from the inlet portion is divided by the dividing body and the ribs into a plurality of streams that are adapted to be discharged respectively via the outlet holes into the steam chamber to fall onto the heating plate; wherein the dividing body has a main section, and a tip end section that extends from the main section toward the inlet portion of the channel, and that tapers away from the main section; and the ribs extend from the main section of the dividing body to the main body. a dividing body that is inserted into the outlet portion of the channel; and a plurality of ribs that extend from the dividing body to the main body, and that cooperate with the dividing body to divide the outlet portion of the channel into a plurality of outlet holes, such that water which enters the channel from the inlet portion is divided by the dividing body and the ribs into a plurality of streams that are adapted to be discharged respectively via the outlet holes into the steam chamber to fall onto the heating plate; wherein the dividing body has a main section, and a tip end section that extends from the main section toward the inlet portion of the channel, and that tapers away from the main section; and the ribs extend from the main section of the dividing body to the main body.