Zinc vaporizes at 1600 F. Flame color may change.
https://www.thehighroad.org/index.php?threads/different-kind-of-annealing-question.862531/![20200124_194833.jpg 20200124_194833.jpg](https://r2d2.www.longrangehunting.com/attachments/237/237538-760a0bba2113fa35f05f089cbea7a58d.jpg)
I use a modified candle method. But takes up a lot of time. Slow.flame changes color
https://www.thehighroad.org/index.php?threads/different-kind-of-annealing-question.862531/
![20200124_194833.jpg 20200124_194833.jpg](https://r2d2.www.longrangehunting.com/attachments/237/237538-760a0bba2113fa35f05f089cbea7a58d.jpg)