Ink Samples: Iron Suphate Ink with Black Tea (for Tannin)

 

I made this ink back in 2015, and it's still works beautifully!

The black tea adds tannin that helps make the ink. 

I was trying to find the Sweet Leaf post describing how I made this ink, but I'm not finding any such post.  Is it possible that I never did write this one previously?

I bought the Iron Sulphate (Copperas aka iron vitriol) at the same time I bought the California Oak Galls from JBB Pens & Paper on etsy.

Here's a sample with iron sulphate ink with silver watercolor, 

although the photo doesn't do it justice.

This would also look nice with the copper oxide ink to give it a nice green patina ...