Recipe: 1. 1 litre water (I use distilled water) 2. 100 ml washing-soda or 54 gramms 3. 16 ml vitamin-C or 16 gramms 4. 160 ml coffee or 40 gramms *Use half of above mentioned quantities for 500ml tank Use fresh made stock only. Don't forget to exercise stop bath and fix. After each agitation tap the tank gently to reduce bubbles. For stop bath I fill the tank with tap water and agitate for a minute constantly then fix it for 3 minutes with Ilford Rapid Fixer. Leave running tap water into the tank for about 30minutes then soak in some distilled water (with some drops of wetting agent if available) for 5 minutes. DONE.