According to JKR, in an interview I am looking for, very skilled wizards/witches can transfigure the potion before it touches their lips. She certainly was not letting her wand out of her grip, so she could have pointed it up slightly from where she stood holding it and cast the non-verbal spell.
Does that help? I also imagine her lips were closed tightly. ;-P
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Date: 2007-08-20 03:51 am (UTC)Does that help? I also imagine her lips were closed tightly. ;-P