I can see why you're confused, because Daniel is recommending this
technique to work harden earring posts, and yet many of us were
taught in college to quench right away after annealing.
Years ago, my students were having lots of trouble with annealing.
It's always a challenge to learn, it's hard to see. So their stuff
was not getting annealed. At the time I worked in Jewelers Row, so
I stopped in at the bench jeweler's next store, and said, "Homer,
what gives, my students' work won't anneal and they're really
He said, "well, what are they doing?"
Me: "They heat the metal, quench it."
He laughed. He laughed!
He said, "That's your problem. You're work hardening the metal."
I began teaching annealing that way, no quenching.
Unfortunately, many students who come to me have already taken
classes and sometimes get really, really, really mad that I say no
quenching. They are sure that I am insane.
So, I posted here, I wrote to Tim McCreight.
Tim said annealing is more complicated than most of us were taught
and that you may quench after annealing, but only when the metal
reaches 700 degrees.
Since I don't know when the heck that is, I don't quench.
Metalsmith, Certified PMC Instructor
Hard to Find Tools for Metal Clay