Given the controveriee surrounding the Aristotelian categories used by the RC Scholastics, I will instead quote the public liturgy of two of the most persecuted churches in the world, the Coptic Orthodox Church and the Syriac Orthodox Church.
First, from the Coptic anaphorae:
Priest:
Amen, Amen, Amen. I believe, I believe, I believe and confess to the last breath that this is the life-giving flesh that Your only-begotten Son, our Lord, God, and Savior Jesus Christ, took from our lady, the lady of us all, the holy Theotokos, Saint Mary.
He made it One with His divinity without mingling, without confusion, and without alteration. He confessed the good confession before Pontius Pilate.
He gave it up for us upon the holy wood of the cross, of His own will, for us all. Truly I believe that His divinity parted not from His humanity for a single moment, nor a twinkling of an eye.
Given for us for salvation, remission of sins, and eternal life to those who partake of Him. I believe, I believe, I believe that this is true. Amen.
+
Deacon:
Amen, Amen, Amen. I believe, I believe, I believe that this is so in truth. Amen.
Pray for us and for all Christians who said to us concerning them, "Remember us in the house of the Lord." The peace and love of Jesus Christ be with you. Sing Alleluia
Pray for the worthy communion of the immaculate, heavenly, and holy mysteries. Lord have mercy.
People:
Glory to You O Lord, glory to You.
+
And then this metrical homily or hymn, Haw Nurone, is sung at the end of the Syriac Orthodox liturgy:
The Lord Whom the seraphs fear to look at,
The same you behold in bread and wine on the altar.
The lightning clothed hosts are burned if they see Him in His brilliance.
Yet the contemptible dust partakes of Him with confidence.
The Son's Mysteries are fire among the heavenly beings,
Isaiah bears witness with us to have seen them.
These Mysteries which were in the Divinity's bosom,
Are distributed to Adam's children on the altar.
The altar is fashioned like the cherubim's chariot,
And is surrounded by the heavenly hosts.
On the altar is laid the Body of God's Son,
And Adam's children carry it solemnly on their hands.
Instead of a man clad in linen, stands the (priest),
And distributes alms (the Eucharist) among the needy.
If envy existed among the angels,
The cherubim would have envied men.
Where Zion set up the Cross to crucify the Son,
There grew up the tree that gave birth to the Lamb.
Where nails were driven in the Son's hands,
There Isaac's hands were bound for an offering.
Welcome, priest, who carries the Mysteries of his Lord,
And with his right hand distributes life to men.
Welcome, priest, who carries a pure censer,
And with its fragrance makes the world sweet and pleasant.
Welcome, priest, whom the Holy Spirit did raise up,
And on his tongue bears the keys to the house of God.
Welcome, priest, who binds man in the depth below,
And the Lord binds him in heaven on high. Halleluiah.
Welcome, priest, who unbinds men on earth,
And the Lord unbinds him in the highest. Kyrie eleison.
Praise be to the Lord. His mercy upon you and absolution for me.
And good commemoration to Mor Jacob the malphono.
+
These are rather unequivocal that a validly consecrated Eucharist is the true and actual body and blood of our Lord. Indeed part of the reason why I love the Syriac and Coptic liturgy so much is its, for want of a better term, “Eucharistic intensity” which exceeds that of even the Byzantine (namely because the Epiclesis is often said softly in the Byzantine Rite while intoned in whole or in part in the Coptic and Syriac Rites.