They weren't a mystery! Merely unlabeled. Hannibal would be happy to tell Jono what they were if he asked.

"Of course." Hannibal smiled back and brought the dishes in to set on the table - himself at the end, and Jono next to him - and went back for the coffee and (fresh-squeezed, organic) orange juice. "It would be a shame not to experience as much as possible."