Abstract: A reusable container that includes a lid and a chamber adapted for leaktight coupling to the lid, where the chamber includes a base unit attachment to attach the chamber to a base unit, and where two or more of the reusable containers can be attached to the base unit. Also, a method of storing a material in a reusable container that includes the steps of placing the material into the reusable container and leaktightly sealing the container sterilizing the container, attaching the container to a base unit that holds two or more of the reusable containers, where the reusable container includes a lid, and a chamber adapted for leaktight coupling to the lid, and where the chamber includes a base unit attachment to attach the chamber to the base unit.