Methods and systems for filling a container with material to a desired level are provided. In particular, a container to be filled is associated with a funnel. The funnel occupies a selected or reserved amount of the container volume. Moreover, the volume of the funnel is less than the reserved volume of the container. Accordingly, by filling the container and the attached funnel to the top of the funnel, and then removing the funnel, the container is filled to less than a maximum level.
