Arukh HaShulchan, Orach Chaim 315:1-7

Sugya Map

• Issue: The definition of Melechet Tochein (Grinding) within the context of Melachot Shabbat.
• Core Question: Is Tochein defined by the act of structural disintegration (reducing to particles) or by the preparation of food for consumption?
• Nafka Mina: Mashing soft foods or peeling vegetables where the tochein definition is debated by Rishonim.
• Primary Sources: Shabbat 73b, Shulchan Aruch, Orach Chaim 315, Arukh HaShulchan, Orach Chaim 315:1-7.

Text Snapshot

"וכל דבר שהוא מגידולי קרקע... דדרך שחיקה הוא—חייב משום טוחן" (Arukh HaShulchan, Orach Chaim 315:1). Nuance: The Arukh HaShulchan focuses on derech shechika—the mode of action rather than just the result. He emphasizes that the chiyuv is contingent upon the item being a gidulei karka (earth-grown).

Readings

• Rambam (Hilchot Shabbat 8:14): Defines Tochein strictly as disintegrating a solid into fine particles.
• Arukh HaShulchan (315:3): Offers a chiddush that the issur is not merely the size of the particles, but the creation of a "new state" for the substance (tikkun ha-ma'achal). If it does not serve the purpose of culinary preparation, the melecha is absent.

Friction

• Kushya: If Tochein is about culinary utility, why is one liable for grinding spices for non-food purposes (e.g., dyeing)?
• Terutz: The Arukh HaShulchan distinguishes between Tochein as a melacha (functional) and Tochein as melechet machshevet. He posits that the chiyuv in the Mishkan was the standard for all similar transformations of matter.

Intertext

• Compare with Shulchan Aruch, Orach Chaim 321:10 regarding Borer. Both hinge on the derech (normal manner) of the action.

Psak/Practice

The Arukh HaShulchan maintains that mashing soft fruits (like bananas) is mutar if done for immediate consumption, as it lacks the derech shechika required for Tochein. The "immediate" factor acts as a hefsek to the melecha.

Takeaway

Tochein is not the act of cutting, but the act of re-creating raw material into a powder. If the form is not pulverized, the issur does not attach.