I think it was 70-60C. To be honest my temperature measurements are pretty much empirical, I've never had a thermometer to back them up

As for today 60-70C per my definition is the temperature when I can hold finger in it and it's pretty uncomfortable and hot but not hot enough to make any real damage. 80C is when I can put finger but the heat makes me remove it after one-two seconds, 90C is something that I can touch but have to immediately remove the finger from this water.
I hope such super scientific ways of measuring temperature produce good enough results

I got them from measuring the bitterness of dragon well tea )))
The other params I used were 3 full tea spoons of tea, 200ml of water, 1.5 mins. Actually now I think that I might have made it too strong, I guess I'll try with 1.5 or 2 tea spoons.