- Washing soda - 54 grams per liter
- vitamin C - 16 grams per liter
- potassium bromide - 1 gram per liter
- salt - 10 grams per liter for high speed films, 6 grams per liter for medium speed films
- coffee - 40 grams per liter
I'm going to have a go at making a caffenol recipe calculator.
Washing