They can mould or ferment rapidly once the container is opened, in the case of aluminum cans, and glass or plastic bottles which have less perfect seals should be viewed as unsafe even before opening.

Further more, rules of case library designing, organizing and distributed storing are investigated, in which, an E-R (Entity-relation) model of plastic parts and injection mould is constructed.

The value of information about mould risks is demonstrated in the decision making process concerning remediation of an actual case of mould infestation.