change in cross section area results in an earlier establishment of air flow into the container and avoids a u201c glugging u201d flow from outlet passage 22 when the desired amount of liquid has been dispensed the lever 34 is released and it assumes the closed position shown in fig3 terminating the flow of liquid from the container it will be apparent that this provides a positive and immediate cut off of liquid flow so as to prevent other than a very minor amount of dripping from the end of the spout 20 the clamping of the end of spout 20 by the in turned 40 of lever 34 provides an airtight seal suitable for the storage of most container contents fig4 to 14 show a preferred form of the invention corresponding reference numerals preceded by the reference numeral u201c 1 u201d have been used to identify corresponding portions of the invention as described in relation to the first embodiment letter suffixes are used to identify additional detail of corresponding features in this embodiment of the invention the spout 120 is part of an insert 121 that fits within moulded body 118 of the pourer 110 the insert 121 is made from a silicone material selected so as to be resiliently deformable but sufficiently stiff to retain the shape of the insert in use as best seen in fig7.