Seems to me a simple medical test of the Host after the transub occurs would reveal if it was indeed hemoglobin and flesh.
You see, rzman21? THIS is why Aquinas is important. The doctrine teaches, almost precisely, that a"simple medical test" would find that the host had all the "accidents" of a baked wafer of wheat flour and water.
In the post Cartesian age "real" does mean what it meant before.
A guy assaulted me once because he thought I was not a REAL Law Enforcement Officer. His error had nothing to do with what could be measured about me. The "reality" (or not) of the presence of Jesus in the Blessed Sacrament cannot be ascertained by tests, well, by none given in this life.