The water was boiled right up until it thickened and turned black. Wine was added throughout boiling. The ink was poured into Particular bags and hung during the sun. When dried, the combination was blended with wine and iron salt more than a hearth to create the final ink.[fifteen] https://howtodrawwithinkpens17150.blog2news.com/37222430/5-easy-facts-about-ink-pen-drawing-techniques-described