Instruction Concerning Worship of the Eucharistic Mystery - A. The Mass 14 - 19

14. On the other hand, the consecrated wine is to be consumed immediately after Communion and may not be kept. Care must be taken to consecrate only the amount of wine needed for Communion.

15. The rules laid down for the purification of the chalice and the other sacred vessels that have contained the Eucharistic species must be observed.(24)

16. Particular respect and care are due to the sacred vessels, both the chalice and paten for the celebration of the Eucharist, and the ciboria for the Communion of the faithful. The form of the vessels must be appropriate for the liturgical use for which they are meant. The material must be noble, durable, and in every case adapted to sacred use. In this sphere, judgment belongs to the episcopal conference of the individual regions.

Use is not to be made of simple baskets or other recipients meant for ordinary use outside the sacred celebrations, nor are the sacred vessels to be of poor quality or lacking any artistic style.
Before being used, chalices and patens must be blessed by the bishop or by a priest.(25)

17. The faithful are to be recommended not to omit to make proper thanksgiving after Communion. They may do this during the celebration with a period of silence, with a hymn, psalm or other song of praise,(26) or also after the celebration, if possible by staying behind to pray for a suitable time.

18. There are, of course, various roles that women can perform in the liturgical assembly: these include reading the Word of God and proclaiming the intentions of the Prayer of the Faithful. Women are not, however, permitted to act as altar servers.(27)

19. Particular vigilance and special care are recommended with regard to Masses transmitted by the audiovisual media. Given their very wide diffusion, their celebration must be of exemplary quality.(28)
In the case of celebrations that are held in private houses, the norms of the Instruction Actio pastoralis of may 15, 1969, are to be observed.(29)