Caffenol film developer

Water	8 oz
Arm & Hammer Washing Soda	2 tsp (level)
Folger's Coffee Crystals	4 tsp (slightly rounded)

Mixing instructions: Mix soda until completely dissolved and solution is clear. Add coffee, mix until all grittiness is gone and solution is uniform, let stand 5-10 minutes until microbubbles clear. Use within 30 minutes.

Dilution: Use undiluted

Starting point development time: 30 mins

Notes: Gives imagewise stain and general (fog) stain.

Caffenol C film developer

Water	8 oz
Arm & Hammer Washing Soda	2.5 tsp (level)
Ascorbic Acid or Erythorbic Acid (97%)	1 g*
Folger's Coffee Crystals	4 tsp (slightly rounded)

Mixing instructions: Mix soda until completely dissolved and solution is clear. Add coffee, mix until all grittiness is gone and solution is uniform, let stand 5-10 minutes until microbubbles clear. Use within 30 minutes.
*1 g = approx. 1/4 tsp

Dilution: Use undiluted

Starting point development time: 12 mins

Notes: Expect slight film speed increase (1/3 to 2/3 stop) and little or no stain. Reduce agitation to eliminate flow marks.

Caffenol LC low contrast film developer

Water	8 oz
Arm & Hammer Washing Soda	2 tsp (level)
Folger's Coffee Crystals	2 tsp (slightly rounded)

Mixing instructions: Mix soda until completely dissolved and solution is clear. Add coffee, mix until all grittiness is gone and solution is uniform, let stand 5-10 minutes until microbubbles clear. Use within 30 minutes.

Dilution: Use undiluted

Starting point development time: 30 mins

Notes: Low contrast developer. Use with microfilms to give pictorial contrast. Mild imagewise stain, little or no general stain.

This information was kindly provided by Donald Qualls. For more details please visit Donald's page of Dilutions and Times

Caffenol LC+C low contrast film developer

Water	8 oz
Arm & Hammer Washing Soda	4 tsp (level)
Ascorbic Acid or Erythorbic Acid (97%)	0.26 g
Folger's Coffee Crystals	2 tsp (slightly rounded)

Mixing instructions: Mix soda until completely dissolved and solution is clear. Add coffee, mix until all grittiness is gone and solution is uniform, let stand 5-10 minutes until microbubbles clear. Mix 1/4 tsp ascorbic acid in one quart water, and use 8 ounces for the developer. Use within 30 minutes.

Dilution: Use undiluted

Starting point development time: 20 mins

Notes: Speed-enhancing low contrast developer. Use with microfilms to give increased speed with pictorial contrast. No detectable stain.

This information was kindly provided by Donald Qualls. For more details please visit Donald's page of Dilutions and Times