Does One Have to Use a Utensil (כלי) or Just Using One's Hands Is Enough for the Melacha;
introduction to "צביעה באוכלים" (coloring foods)
Understanding the Difference Between the Melacha of Kotzair-קוֹצֵר (Reaping) and Gozez-גּוֹזֵז (Shearing);