My father showed me how to make Ouma coffee when camping with instant coffee.
They were hiking the B/kloof and had made coffee, some where between spooning coffee in cups and pouring water the spoon went AWOL. Uncle Cliff took a stick out fire and blew the ash off it and stirred with the stick- the others followed suite. It was noticed that it was a very nice coffee. Later when coffee was made again it was noted that the coffee was just OK, someone joked must be burning stick.
I challenge every one reading this :::::::::::::::::::
next braai make instant coffee - 2 cups one you stir with spoon one you stir with a glowing coal, before sugar milk - taste the differance.
My theory is the stick burns some of the coffee and perhaps leach's off some
You have a much stronger coffee --- it tradition with us,