Transform washi with this starch made from Devil's Tongue root. Stiff and sturdy or soft and supple, the possibilities are many with this amazing paper treatment. Konnyaku gives the paper textural memory, strength and water-resistance. Some popular uses are to create textured momigami or as a pretreatment for dyeing or embroidery. Prepare at least 3-5 hours in advance. ¼ teaspoon of konnyaku powder can treat two large sheets of washi (24 × 39 inches or 61 x 99 cm). 50 grams ≈ 12 teaspoons. The papers in the photos are Mitsumata Iron Oxide and Akebono. See below for mixing instructions. Try a konnyaku paper kit!