In the process of making liquid substances sediment may accumulate at the bottom of the containers in which said liquid is retained. It is known that, by inverting such a container, undissolved particles may then deposit in the form of sediment at the container opening and be drawn out. In this invention, a closure cap, attachable to and releasable from the neck of a container, comprises an inner wall lying flush with the interior surface of said neck and having for its interior surface an upwardly tapering cross section extending into the container opening to form at its apex an inlet means. Said interior surface extends beyond the inlet means with an upwardly expanding cross section to form a conical chute, such that undissolved particles, from liquid retained inside the container to which the closure cap is attached, may flow into the closure cap if the container is inverted. Once downstream of said inlet means, sediment may be caused to accumulate in a deposit chamber, being the internal volume of the closure cap defined by the interior surface of its walls. Upon a process in said container being complete and the container uprighted, a freely disposing valve at the inlet means will restrict the passage of sediment collected in the deposit chamber back into the container, thus, confining the sediment inside the closure cap. The sediment may then be disposed of by removal of the closure cap from the container.
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