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The traditional process of manufacturing ink-cake is complicated. It requires exceptional skill and experience, particularly in the mixture of the raw materials, which include soot, glue, and water, and in the dehydration. Since the dehydration process is long, cracks and deformities may form on the surface due to changes in the surrounding temperature and humidity. To address this issue, soot itself was directly treated with an acid mixture and hydrophilicized, allowing the formation of a crude ink-cake containing smaller amounts of water and glue than that made in the traditional process. The crude solid ink was press-molded while being heated at 60 ℃, cooled to room temperature, demolded, and finally dried in the dehydrator at 80 ℃ for three days. This process results in an ink-cake without cracks or deformities. The completed ink-cake was close in value to store-bought ink-cake, as its density equaled 1.31 g/cm3. Its Vickers hardness was 33.7 VHN; its surface resistance was 260.0 Ω, as determined by the distance between the terminal ends, i.e., 10 mm; and its compressive strength equaled 184 MPa. Ultimately, the calligraphy with the ink-cake produced in the manner described here was equivalent in quality to that produced with store-bought ink-cake.