Abstract: A liquid storage, isolation and dispensing assembly includes a container, which defines an axis and has an inner surface, top and float. The top is mountable to the upper end with a sealing element engaging the inner surface at a liquid sealing position. The open upper end is least partially unobstructed when the top is at the liquid pouring position. The float includes a top portion, a bottom portion and a sealing edge sized to create a minimal gap between the sealing edge and the interior surface when floating on the liquid surface with the axis generally vertical. Tilting the container creates a gap between the float and the inner surface permitting the liquid to pass the sealing edge and out of the open upper end.