Question 9:
Food cannot be conjured (One of Five Exceptions to Gamps Elemental Law of Transfiguration). Why then in Book 4 can Mrs. Weasley slammed a large copper saucepan down on the kitchen table and began to wave her wand around inside it. A creamy sauce poured from the wand tip as she stirred?
One possible answer is that the rules that apply to solid foods do not apply to liquids (assuming the above ‘creamy sauce’ is more cream than anything else, and thereby a drink, being a by-product of milk).
It is also shayach that Mrs Weasley is summoning, or perhaps altering, the food, and not being mechadesh new food. Remember, earlier on potatoes were peeled. the fact that it comes from the wand tip doesn’t mean it couldn’t have been summoned.