Editing Instant coffee (section)

===Non-food uses===
Instant coffee is one of the ingredients in [[Caffenol]],<ref>{{cite web |url=https://caffenol.blogspot.com/2010/08/recipes.html |title=Comparison of different Caffenol formulas |website=caffenol.blogspot.com |date=August 17, 2010 }}</ref> a home-made, non-toxic [[black-and-white]] [[photographic developer]]. The other ingredients in the basic formula are [[ascorbic acid]] (vitamin C) and [[anhydrous]] [[sodium carbonate]]; some recipes also include [[potassium bromide]] as a fog-reducing agent. The active ingredient appears to be [[caffeic acid]]. Initial experiments on Caffenol were performed in 1995 at the [[Rochester Institute of Technology]];<ref>{{cite web |url=https://people.rit.edu/andpph/text-coffee.html |title=A Use for that Last Cup of Coffee: Film and Paper Development] Darkroom and Creative Camera Techniques |date=September 1995 |first=Scott |last=Williams }}</ref> addition of ascorbic acid began around 2000, yielding the improved Caffenol-C, which is less likely to stain negatives than the original formulation. Experiments have shown that cheaper, less desirable brands of coffee work better for this application than more expensive brands.<ref>{{cite web |url=https://caffenol.blogspot.com/2010/03/caffenol-c-m-recipe.html |title=Caffenol-C-M, recipe |date=March 2, 2010 }}</ref>

In crafts, Instant coffee can be used as a [[dye]] to stain paper and give the impression of it being aged.<ref>{{Cite web |date=2022-10-10 |title=How to stain paper with coffee {{!}} Bookbinding Workshop Singapore |url=https://www.bookbindingworkshopsg.com/how-to-stain-paper-with-coffee/ |access-date=2024-08-04 |language=en-US}}</ref>