|"Are you a wizard or not?"
- "Hermione was the only one who had managed to turn vinegar into wine; her glass flask was full of deep crimson liquid."
This charm is used to turn vinegar into wine. It was taught by Filius Flitwick, the Charms professor, to the sixth year students in the 1996–1997 school year. If cast incorrectly, said vinegar may turn into ice, or else the flask which contains the vinegar may explode, as happened when Harry and Ron attempted to cast it.
Behind the scenes
- At first sight, this spell seems to change one thing into another, rather than adding properties to it, technically making it a transfiguration spell, despite being taught in Charms class. However, when one considers that vinegar is produced through the oxidation of ethanol it is entirely possible that what this charm does is revert that naturally occurring mechanism and not transform one thing to another, stricto sensu — effectively making it a Charm spell.
- Harry Potter and the Half-Blood Prince (First appearance)