So you find a way to clean the cups... now we have to figure out how to pack them and make them brew ready. Should we assume that each person shall have to repack their own cup or will this be handled prior to setting the cups in the cafeteria.
Either way, I'm thinking of those badge-a-minute machines or a bottle capper to be retrofitted to stamp the foil lid. Now all we need is foil and FDA approved adhesives, or some other way to seal the foil around the cup as I imagine this is crucial to their brewing process.