From a reader:
During week day Masses the priest at our parish sometimes has no
server. In this circumstance he obviously has to go to the credence
table himself to get the gifts. After pouring the water and wine into
the Chalice he leaves both cruets on the Altar during the Eucharistic
Prayer. So is the wine transubstantiated into the Blood of Christ? The
wine is used at other Masses later int he week, hence my concerned.
The priest would have to intend the consecrate it, which is unlikely, since he doesn’t pour it into the chalice.
The rule of thumb is that the priest intends to consecrate the wine with water in the chalice and the hosts which are placed within the confines of the corporal spread out on the altar.
Which brings me to something which seems to be a growing problem.
As our liturgical world crumbled over the last few decades, many good-hearted people willing to take care of altar linens are confused about how to iron a corporal.
I recommend a booklet by Angelus Press on this topic. Click HERE.