To create light leaks you don’t have to open your camera, just use coffee as a bath for your film! The first one was with an ordinary negative film and on the second try I used a slide film.
This was another try of experimenting with coffee.
On both films, the coffee created some nice color bubbles, so I was curious about what the coffee will do with a b/w film.
Instead of color bubbles i found some light leaks on the film without the manual process of opening the camera back.
You can find the whole series of photos here.