Hypothetically, of course...
A brand new, volunteer sacristan has combined a bag of unconsecrated hosts with the consecrated hosts from the Tabernacle in a large ciborium, and there's no way to determine which are which.
Mass is now thirty minutes from starting. How do you handle it in a way that:
- Stresses to the sacristan how wrong doing such a thing is.
- Keeps the sacristan from running out of the sacristy in tears, never to show up again.
- Gets the unconsecrated hosts consecrated at Mass.
- Prevent the appearance of the need to "reconsecrate" already consecrated hosts.
OK, take a swing at it. Please stress what you'd do to handle the situation of the hosts, not what you'd do to torture the sacristan.