Full Idea
Transubstantiation maintains that the accidents of the bread and wine endure after consecration without inhering in the substance.
Gist of Idea
Transubstantion says accidents of bread and wine don't inhere in the substance
Source
Robert Pasnau (Metaphysical Themes 1274-1671 [2011], 10.3)
Book Reference
Pasnau,Robert: 'Metaphysical Themes 1274-1671' [OUP 2011], p.185
A Reaction
It's a big puzzle to outsiders why softness and nice taste should have theological significance. If it is the body and blood of Christ, presumably a miracle has occurred, so normal theories don't apply. It is the key difficulty for scholastic metaphysics.