A teat unit for sucking a liquid from a liquid container, wherein the teat unit comprises a teat and a receiving head for receiving the teat and a base part to be fitted onto a container neck, wherein the teat comprises a mouthpiece and a main body which is formed integrally on the mouthpiece, and wherein the receiving head can be plugged into the base part, the teat unit further comprising a venting valve being arranged in the base part.一種用於從一液體容器中吸吮液體之奶嘴單元,其中該奶嘴單元包含一奶嘴和一用於套接該奶嘴的套接頭部以及配適至一容器頸部上的一底座部分,其中該奶嘴包括一吸嘴及一體成形於該吸嘴上的一主體,且其中該套接頭部可被插入至該底座部分內,該奶嘴單元進一步包括配置於該底座部分中的一通氣閥。