Metal is a better conductor of heat than stone
if that were true, a baking tray would be better still. It isn't.
( Kroney, Mon 14 Jan 2013, 17:30, 1 reply, 12 years ago)

The claim for them is that they absorb moisture and thus give a crispy base.

( Monty Boyce, My cheese game is strong, Mon 14 Jan 2013, 17:37, Reply)

So does using the grill tray
As any moisture just falls off the pizza.
(Bazongaloid, Mon 14 Jan 2013, 17:40, Reply)

Stone is well known for its absorptive properties.
They're practically sponges.
( Kroney, Mon 14 Jan 2013, 17:48, Reply)

They are ceramic on the whole
But even if they weren't, surely even in your dismal French upbringing you must have encountered porous rocks like chalk, limestone, sandstone, pumice etc?

No?
( Monty Boyce, My cheese game is strong, Mon 14 Jan 2013, 17:59, Reply)