Vanishing and Conjuring - how does it work?

[Beth]

No: HPFGUIDX 70770

--- In HPforGrownups at yahoogroups.com, "Steve" <bboy_mn at y...> wrote:
> Examples; you conjure clothes and go to a party, halfway through 
the party, your clothes disappear. You conjure up a bag of Leprechaun
> Galleons and later they vanish. That really tends to irritate shop
> keepers.
> 
> That's the bad new, now for the good news. You can conjure up a 
gallon of the richest, most delicious ice cream on earth and eat the 
entire gallon, and the calorie count is virtually zero while the 
pleasure count is through the roof. 
> 
> I suspect that this is what Molly did when the 'white sauce' came 
out of her wand. White sauce is usually made from cream, and is 
extremely rich and fattening, so she created it from nothing. That 
means all flavor and no fat or calories. Yummy!
> 
> JKR has personally said in interviews that conjured items have no
> permanence. They're made from nothing, then eventually return to 
nothing.
> 
> Just a thought.
> 
> bboy_mn

Yay! Star Trek analogies--something I can understand!

So the items in the room of requirement--conjured or transferred? If 
conjured, they would need to be conjured for every DA meeting, if 
transferred, weren't the owners missing them? (And I keep coming 
back to Luna's statement at the end about her things disappearing 
and wondering: Did the room have need of them?)

And conjured ice cream (sigh): Wouldn't you go away hungry if all 
your calories returned to nothing?

Questions, questions,
Beth