1 hour, 10 minutes (Stand developed) at 20°C/68.0°F
Semi-stand development. I start with 6 soft movements over 30 seconds, then finally tipping 3 times after expiry of 2/4/8/16/32 minutes. For the rest of the time, I just leave the can stand.
Dilute Caffenol developer according to recommendations from Frank Wesp.
6 grams of washing soda in 800 ml
3.75 grams of vitamin C
Stir 15 grams of coffee powder
Add 0.8 grams of potassium bromide