45 minutes (Stand developed) at 20°C/68.0°F
Quasi-stand development, drill at the beginning and after 10 minutes, 20 minutes, 30 minutes for some times.
18 g Oolong tea or green tea
Boil with 500 ml Water for 5 minutes.
(Refill to 500 ml after filtering)
after cooling, add
18 g washing soda
4 g vitamine C
1 tea spoon iod salt (optionally)