While there is significant diversity between individual Episcopalians/Anglicans, historically they do have some core teaching regarding the Mass in general and the Eucharistic elements in particular. These are three Articles from the Anglican/Episcopal Thirty-Nine Articles of Religion which is the foundational theological statement for these churches:
XXVIII. Of the Lord’s Supper.
The Supper of the Lord is not only a sign of the love that Christians ought to have among themselves one to another, but rather it is a Sacrament of our Redemption by Christ’s death: insomuch that to such as rightly, worthily, and with faith, receive the same, the Bread which we break is a partaking of the Body of Christ; and likewise the Cup of Blessing is a partaking of the Blood of Christ.
Transubstantiation (or the change of the substance of Bread and Wine) in the Supper of the Lord, cannot be proved by Holy Writ; but is repugnant to the plain words of Scripture, overthroweth the nature of a Sacrament, and hath given occasion to many superstitions.
The Body of Christ is given, taken, and eaten, in the Supper, only after an heavenly and spiritual manner. And the mean whereby the Body of Christ is received and eaten in the Supper, is Faith.
The Sacrament of the Lord’s Supper was not by Christ’s ordinance reserved, carried about, lifted up, or worshipped.
XXIX. Of the Wicked, which eat not the Body of Christ in the use of the Lord’s Supper.
The Wicked, and such as be void of a lively faith, although they do carnally and visibly press with their teeth (as Saint Augustine saith) the Sacrament of the Body and Blood of Christ; yet in no wise are they partakers of Christ: but rather, to their condemnation, do eat and drink the sign or Sacrament of so great a thing.
XXX. Of both Kinds.
The Cup of the Lord is not to be denied to the Lay-people: for both the parts of the Lord’s Sacrament, by Christ’s ordinance and commandment, ought to be ministered to all Christian men alike.