copy/paste from the link:
"To Quench or Not to Quench
Notice that there was no mention of quenching the brass. To anneal brass, all that is required is heat and time. Once you have allowed the structure of the brass to transform, it's done. You can cool it as slowly or as quickly as you like and it won't matter.

The myth that you need to quench brass comes from the requirement to do so when heat treating some kinds of steel. Those steels harden by a very different mechanism that has nothing to do with brass or work hardening at all.

Damon Cali is the creator of the Bison Ballistics website and a high power rifle shooter currently living in Nebraska."

https://bisonballistics.com/articles/the-science-of-cartridge-brass-annealing

I do not h20 quench. I allow the case to air cool. I use the method described in link below:
https://www.24hourcampfire.com/ubbt...7040/dna-candle-case-anneal#Post12607040

GOA