Caffenol turns Folgers into DIY film developer -- decaf won't do (video)
We knew instant coffee was good for something. The folks at Make just demoed a rather novel method for developing negatives from a roll of black and white film -- you remember film, don't you? Known as Caffenol, the process involves a smattering of household substances, including Vitamin C powder, instant coffee (caffeinated only), good ole H2O, and Cascade. Of course, it's not as simple as throwing this stuff in a slosh bucket with a roll of film and mixing it up, but it's not that complicated, either. If you're looking for something to do with those instant crystals, and still have a non-digital camera laying around, hop on past the break for a homebrew tutorial.
All products recommended by Engadget are selected by our editorial team, independent of our parent company. Some of our stories include affiliate links. If you buy something through one of these links, we may earn an affiliate commission. All prices are correct at the time of publishing.