Such a thought came to my mind, or rather a question: so at the Last Supper, did the Apostles eat everything to the end that was the Body and Blood of Christ, or were there any surpluses left? It could also be that the smallest part was transformed into the Body and Blood of Christ, at the level of one large piece of bread, which was divided into parts and distributed by Christ to the disciples, and these parts were eaten completely. And as for the cup of wine, there was one cup of wine that could be drunk completely. Or there were some remnants that could be treated as Lutherans treat the Eucharistic remnants, that after the Supper, these remnants no longer mattered. That's what's interesting. Going further, I had thoughts that the Apostles did not wash the cup with water after the wine, so that there would be no traces of wine left there, as they do now in historical churches. The apostles did not keep track of the crumbs, and now, the priest is careful not to drop a single crumb in the Eucharist. The priests of the Byzantine rite, when they receive communion at the altar, even blow crumbs into themselves from their palms, because they held the Body of Christ in their hands. But again, I do not know if unleavened bread crumbles, if suddenly Christ and the Apostles used it. I do not know which bread they used - yeast or unleavened. In addition, Christ, who had already risen, broke bread in front of the disciples who were going to Emmaus. Whether it was the Eucharist, or the type of Agape, or just broke bread. If suddenly it was the Eucharist, then again there is a question of crumbs. Regarding the event with the disciples going to Emmaus, St. Augustine and most of the other commentators along with him thought that Christ gave bread not as an ordinary meal, but as His Body. And even Pope John Paul II suggests that yes, the Eucharist was celebrated. As a rule, they argue that the pupils' eyes have opened. Calvin simply explains that the disciples recognized Christ by their usual form of prayer, to which the disciples were accustomed.