Why were the ingots mostly round?

[PUFF]

Originally Posted by Jens Nordlunde

Hi Puff, thank you for the explanation, I had an idea that it may be like you described, but I was not sure. Also I knew about the heat, but it is better to hear it one more time. Also there may still be some of the forumites who have not heard about this before.
So I suppose that the temperature of 900-100C is the cherry colour Hendley writes about.
Nice to have people like Greg, Jeff and you onboard, when it comes to the construction of our collectives.

Just a minor correction, 900-1000 C going to be a yellowish cherry, a bit sour for my taste. Nice sweet & sour cherry red 's around 800 C.