No. It is a mystery of faith. All external appearances remain as before consecration, but the substance of bread and the substance of wine are changed into the substance of Our Lord’s body and blood. The reason why we believe is not in the Host as such, but in God. He has revealed this truth, and we believe because He must know and could not tell an untruth.
Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty