Only unfermented wine should be used at the Communion table—Christ did not contradict His own teaching. The unfermented wine that He provided for the wedding guests was a wholesome and refreshing drink. This is the wine that was used by our Saviour and His disciples in the first Communion. It is the wine that should always be used on the Communion table as a symbol of the Saviour's blood. The sacramental service is designed to be soul-refreshing and life-giving. There is to be connected with it nothing that could minister to evil.—The Ministry of Healing, 333. PaM 171.2
Communion bread must be unleavened—The broken bread and pure juice of the grape are to represent the broken body and spilled blood of the Son of God. Bread that is leavened must not come on the communion table; unleavened bread is the only correct representation of the Lord's Supper. Nothing fermented is to be used. Only the pure fruit of the vine and the unleavened bread are to be used.—The Review and Herald, June 7, 1898. PaM 171.3