recipe to develop some black and white film. I have been seriously developing my own film for about six years, and have used a variety of commercial developers, mostly sticking with D-76, HC-110, Rodinal, and Diafine.
The attraction to using caffeinol is that it goes against my gut instinct... why in hell would someone use instant coffee to develop film? In addition, the low-toxicity and the ability to have good shadow detail with the developer is a plus.
The formula is presented here:
2 tsp washing soda (Sodium carbonate)
4 tsp instant coffe (I used Maxwell house)
1 gram vitamin C (1 finely gound 1000 mg tablet)
8 oz water
I shot a roll of Ilford FP4+ (125 iso) and developed the film in the caffeinol for 15 minutes at 74°F, agitating every minute. I think the results were good... in fact, the negatives were pretty dense, so I think I will adjust the time to be a few minutes shorter next time.
The beauty of this developer is that it uses ingredients that are common and easy to mix. Something to think about in the years ahead when the big companies reduce the choice of developers.