STOP RIGHT THERE!
I have a theory.
Bread has yeast which rises.
Wine is alcohol.
Jesus' blood was wine and his body was bread. So therefore my hypothesis is that jesus was beer-bread. It's plausible, and perhaps the caves heat caused his body to 'rise' again. Jesus was actually bread!
The church is about to cream themselves when they realize that jesus' true form was literally as he said it.