[post_page_title]Time to cool[/post_page_title]
The molten gold is added to the cast and then has to be left to cool down. The jeweler wants to make sure the gold is the exact shape of the ring, so can’t risk handling the gold when it is still soft. Instead, he must wait until it has completely hardened before taking it out of the cast.
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It would be a waste of time handling the metal before it was ready and the jeweler would have to start the melting process all over again if he did.