Sofer Ink: The Sacred Dyo Used for Tefillin, Mezuzot and Torah Scrolls

When looking at a Sefer Torah, a pair of Tefillin, or handwritten Mezuzah scrolls, the eye is naturally drawn to the beauty and precision of the calligraphy. Yet few people stop to consider the vital substance that makes this sacred writing possible: Dyo, the special black ink used by a Sofer STaM. In the world…