FURTHER CHANGES
The following innovations also took place:
1. unleavened bread in the form of thin wafers made by consecrated people, usually nuns, was used from around the ninth century, and wine was specially made as ‘altar wine’ (this was making the elements sacred before the celebration)
2. communion was given on the tongue with the communicant kneeling to show penitence and subservience
3. only the priest gave communion and did the readings
4. the cup was not given at all to the laity from the fourteenth century
5. only a priest could touch the ‘sacred vessels’ such as the chalice and the ciborium
6. the cloths (corporals and purificators) had to be washed three times by a priest and the water poured down the sacrarium so that it went into the garden, before the sacristan could wash and iron them
7. altar rails were installed to define the sacred area, the sanctuary, where only priests, male ministers and altar servers could be present during Mass
8. a white altar rail cloth ran the full length of the altar rails; this was lifted and turned over the altar rails before communion, and the communicants had to place their hands under the cloth and hold it up under the chin to catch any crumbs that may break off the host; as a further safeguard the altar boy had to follow along with the priest and hold a ‘communion plate’ under the chin of the communicant
9. the Eucharistic prayer was recited silently by the priest except for the words of consecration which were voiced a little louder but not so loud as to be heard by the people
because the people couldn’t hear the Eucharistic prayer, and even if they could they would not understand the Latin, many filled in the time by reciting the rosary or other devotional prayers during Mass.
https://theeucharist.wordpress.com/index/chapter-1/