To give an idea of the color I've used my ink on a scrap of 140# watercolor paper to achieve an aged effect by toning the paper and applying a heavier wash around the deckle edge. I'm very happy with the results and find this ink very easy to work with. I did a small still life of an acorn and oak leaf last night but it was too rushed so I plan to re-do it before posting.
The finished ink waiting for a drop or two of clove oil to help preserve it. I will also have to cover the jars to block out any light or replace with tinted glass containers. Walnut ink should be protected from direct light.
I decided to go with coffee filters to strain my ink. I felt the filters would do the best job removing any unwanted sediment. Once the liquid was strained from the husks it still contained a lot of 'sludge' so I left it to drain all night to get every bit of useable ink possible.
Mold forming on the top of the ink. It didn't show up until 3 weeks into the steeping process and was easily removed.
My ink is finally ready for it's debut. I let it steep for a little over a month, scraping mold from only one jar twice. The second jar of ink did not produce any mold at all. I noticed no foul smell during the process from either jar. The ink has maintained it's original earthy aroma which is ok by me and the resulting ink is a beautiful warm shade of sepia.
After separating the husks from the liquid I wound up with barely two cups of finished ink. My steeping jars held slightly less than a quart each and the husks took up half the space in each jar to give a rough idea of what amount of ink can be expected. In hindsight I wish I had put the removed husks in cheesecloth and wrung out more liquid. Instead I arranged them on newspaper and paper towel to drain, then double bagged them in ziploc baggies and put them in the freezer for storage. I hope to thaw them at a later date and see if I can make more ink using these same husks.