Recipe and Instructions

Chemical

2 reel tank

Dev

Ingredient	Amount  (g)	Amount (volume)
Instant coffee	20g
Ascorbic acid	5g
Sodium carbonate (anhydrous)	13.5g
Water	400ml	for mix
Water	to 500ml	for topping off to tank volume

Fix

120g + 400ml water for mix, topped off to 500ml

Mix instructions

Fix
120gTarget +temp waterfor all solutions is 20 deg C / 68 deg F

Dev

1. 400ml water, add soda while stirring. It will tend to 500mlclump

   Mixif order:not water,stirred thenduring soda,mix, thenbut ascorbicbreaks acid,up thenwith coffee.continued agitation.

2. Ascorbic acid. It foamsmay foam a bit when the ascorbic acid and soda meet, so go slowly.
3. Coffee.

Fix

LargeThe thiosulfate crystals dissolve slowly and chill the water as they go. UseStart with warm water (~30-40°C) and stir, or crush them first.stir.

Times & Temps

Standard caffenol-C development is around ~15 minutes at 20°C with agitation
Agitation for the first 30 seconds and a few gentle inversions each minute. 
Time varies by film andfilm, coffee strength, so use it as a starting point.

Mix the developer fresh and use it one-shot.temps.