A system for dispensing a flowable food product comprising: a reservoir including a wall, the wall defining an aperture therethrough for allowing the flowable food product to exit the reservoir; a fitment (210, 310, 810, 1610) coupled to the wall of the reservoir; and a valve (300, 400, 500, 800, 1000, 1600) comprising: a base member (112, 422, 612, 712, 912, 1622) having a first passageway (322, 426, 430, 454, 554, 854, 1630) extending therethrough; wherein the base member is part of a probe (420, 520, 820, 1620) at least a portion of which is configured to be received in the fitment (210, 310, 810, 1610) and a movable member (450, 850, 1150, 1250, 1650) having a second passageway extending therethrough the movable member configured to slide relative to the base member between a closed position in which the first passageway and the second passageway do not overlap and an open position in which the first passageway and the second passageway overlap; whereby when the movable member is in the open position, an axis extending through the first passageway and the second passageway extends through the aperture in the reservoir; characterised in that said fitment (210, 310, 810, 1610) includes a tang (815, 1615) and said movable member (450, 850, 1150, 1250, 1650) has a detent (853, 1653) and that engagement of the detent (853, 1653) and the tang (815, 1615) inhibits movement of the movable member from the closed to the open positions. a reservoir including a wall, the wall defining an aperture therethrough for allowing the flowable food product to exit the reservoir; a fitment (210, 310, 810, 1610) coupled to the wall of the reservoir; and a valve (300, 400, 500, 800, 1000, 1600) comprising: a base member (112, 422, 612, 712, 912, 1622) having a first passageway (322, 426, 430, 454, 554, 854, 1630) extending therethrough; wherein the base member is part of a probe (420, 520, 820, 1620) at least a portion of which is configured to be received in the fitment (210, 310, 810, 1610) and a movable member (450, 850, 1150, 1250, 1650) having a second passageway extending therethrough the movable member configured to slide relative to the base member between a closed position in which the first passageway and the second passageway do not overlap and an open position in which the first passageway and the second passageway overlap; a base member (112, 422, 612, 712, 912, 1622) having a first passageway (322, 426, 430, 454, 554, 854, 1630) extending therethrough; wherein the base member is part of a probe (420, 520, 820, 1620) at least a portion of which is configured to be received in the fitment (210, 310, 810, 1610) and a movable member (450, 850, 1150, 1250, 1650) having a second passageway extending therethrough the movable member configured to slide relative to the base member between a closed position in which the first passageway and the second passageway do not overlap and an open position in which the first passageway and the second passageway overlap; whereby when the movable member is in the open position, an axis extending through the first passageway and the second passageway extends through the aperture in the reservoir; characterised in that said fitment (210, 310, 810, 1610) includes a tang (815, 1615) and said movable member (450, 850, 1150, 1250, 1650) has a detent (853, 1653) and that engagement of the detent (853, 1653) and the tang (815, 1615) inhibits movement of the movable member from the closed to the open positions.