Burning vegetable oil creating soot for sumi Share this: Share on Reddit (Opens in new window) Reddit Email a link to a friend (Opens in new window) Email Share on WhatsApp (Opens in new window) WhatsApp More Print (Opens in new window) Print Share on TumblrTweetLike Loading... Post a comment or leave a trackback: Trackback URL. Making of sumi ink at Kobaien Sumi shop 7 Tsubaicho, Nara, Japan Burning vegetable oil creating soot for sumi