I walk in the college arboretum every weekday and noticed oak galls on some of the smaller oak trees. Hmmm, maybe I should try making some iron gall ink! That is what started it all. I looked up recipes, found one that was simple enough and got the iron sulfate and gum arabic and now have a batch of iron gall ink that I am really enjoying using...with my dip pen not my vintage fountain pens. This is my first venture in making my own ink but may not be the last. I have a black walnut in my front yard!
Now I'm wondering if I might have problem with mold growth or some other slimy organism fouling up the ink. Is there a preservative that I should be using to prevent the problem, or maybe with the acidity that iron gall is supposed to have organisms aren't a problem. I think I saw someplace that cloves could be placed in the container and would do the job. Any suggestions or comments would be appreciated.