Caffenol - how many times can I use the same soup?

In Ascorbate Blogspot I read that it is possible to use the same Caffenol for 3 developments with 48 hour intervals; I read somewhere the experience of someone who developed 7 rolls the same day, and I read that there is already the experience of the same developer lasting 16 days to reveal every day.

Curious about these experiences, I also decided to try!:-)

Pentax Espio

Trixpan400 - third roller to be developed with the same Homemade soup - Caffenol