Question 74 — The Matter of The Eucharist

We have now to consider the matter of this sacrament: and first of all as to its species; second, the change of the bread and wine into the body of Christ; third, the manner in which Christ’s body exists in this sacrament; fourth, the accidents of bread and wine which continue in this sacrament.

Under the first heading there are eight points for inquiry:

(1) Whether bread and wine are the matter of this sacrament?

• (2) Whether a determinate quantity of the same is required for the matter of this sacrament?
• (3) Whether the matter of this sacrament is wheaten bread?
• (4) Whether it is unleavened or fermented bread?
• (5) Whether the matter of this sacrament is wine from the grape?
• (6) Whether water should be mixed with it?
• (7) Whether water is of necessity for this sacrament?
• (8) Of the quantity of the water added.