Abstract: There is disclosed an apparatus for dispensing a viscous liquid, the apparatus to be connected with a reservoir for holding the liquid (at least a part of the reservoir being resiliently squeezable), the apparatus comprising a measuring channel for measuring therein a quantity of the liquid to be dispensed, a spout in communication with an upper part of the channel, and an air trap including an air chamber, the air trap being in communication with a lower end of the channel and with substantially the bottom of the reservoir. The air trap is able in use to release an air bubble from the chamber into the lower end and to replenish the chamber with air.