On the SCA Newcomers list, THLord Ian the Green offered information on the making of period ink by way of his blog Scribescribbling. He also offers documentation on recent ink-making experiences.
The blog includes recipes for making ink from A Booke of Secrets showing diverse ways to make ink – 1596.
Ian the Green writes:
Making ink is actually a pretty easy thing to do and is one of the single most important ways we know information about the time period we attempt to recreate in the SCA. Even if you aren't a scribe, learning to make ink can be a fun and enjoyable activity. And you will probably make a lot of scribes around you very happy as well.