4. Communion under Both Kinds (Part II)
[105.] If one chalice is not sufficient for Communion to be distributed under both kinds to the Priest concelebrants or Christ’s faithful, there is no reason why the Priest celebrant should not use several chalices.
 For it is to be remembered that all Priests in celebrating Holy Mass are bound to receive Communion under both kinds. It is praiseworthy, by reason of the sign value, to use a main chalice of larger dimensions, together with smaller chalices.
[106.] However, the pouring of the Blood of Christ after the consecration from one vessel to another is completely to be avoided, lest anything should happen that would be to the detriment of so great a mystery. Never to be used for containing the Blood of the Lord are flagons, bowls, or other vessels that are not fully in accord with the established norms.
[107.] In accordance with what is laid down by the canons, “one who throws away the consecrated species or takes them away or keeps them for a sacrilegious purpose, incurs a latae sententiae excommunication reserved to the Apostolic See; a cleric, moreover, may be punished by another penalty, not excluding dismissal from the clerical state”. To be regarded as pertaining to this case is any action that is voluntarily and gravely disrespectful of the sacred species. Anyone, therefore, who acts contrary to these norms, for example casting the sacred species into the sacrarium or in an unworthy place or on the ground, incurs the penalties laid down.
Furthermore all will remember that once the distribution of Holy Communion during the celebration of Mass has been completed, the prescriptions of the Roman Missal are to be observed, and in particular, whatever may remain of the Blood of Christ must be entirely and immediately consumed by the Priest or by another minister, according to the norms, while the consecrated hosts that are left are to be consumed by the Priest at the altar or carried to the place for the reservation of the Eucharist.