Arukh HaShulchan, Orach Chaim 316:25-31

Sugya Map

• Issue: The definition of Tochein (grinding) regarding soft foods—specifically whether the prohibition applies to foods consumed in their natural state.
• Nafka Mina: Peeling fruits, mashing bananas, or mincing onions for immediate consumption.
• Primary Sources: Shabbat 74a, Shulchan Arukh, Orach Chaim 321:9, Arukh HaShulchan, Orach Chaim 316:25-31.

Text Snapshot

The Arukh HaShulchan (316:28) notes: “Everything that is soft and not a distinct grain, like onions... is not Tochein.” The dikduk here is critical: he pivots from the Rambam’s strict categorization to a functional definition. He emphasizes that Tochein requires the intent to improve the material for preservation or specific culinary structure, not mere preparation for the immediate meal.

Readings

• Rambam (Hilchot Shabbat 8:13): Establishes that Tochein is a Toldah of Dosh (threshing). His chiddush is that any reduction of a substance to smaller parts constitutes a violation, irrespective of the substance's texture.
• Arukh HaShulchan (316:28): Argues that the gezeirah of Tochein was never intended to restrict normal meal preparation (derekh achila). His chiddush is that Tochein only applies to hard items typically requiring milling; soft items, by definition, fall outside the melechet machshevet of the artisan.

Friction

• Kushya: If Tochein is a Toldah of Dosh, why should the softness of the item matter? Shabbat 74a suggests the act of separation is the essence, not the hardness of the object.
• Terutz: The Arukh HaShulchan posits that Tochein is fundamentally an act of making a food product. If the item is already edible and soft, mincing it is derekh achila, not Tochein. The act lacks the melachah’s teleological purpose.

Intertext

• Shulchan Arukh, Orach Chaim 321:9: Allows mincing onions le-altar (immediately).
• Mishnah Berurah 321:38: Concurs but demands the use of a knife rather than a grater to avoid the Tochein prohibition.

Psak/Practice

The Arukh HaShulchan provides a meta-heuristic: if the action is derekh achila—preparing food for the immediate meal—and doesn't involve specialized tools (keli she-hu kach), the prohibition of Tochein is significantly mitigated. However, one must still avoid using a pumpeidah (grater).

Takeaway

Don't confuse preparation with creation. If you are mincing a soft vegetable for lunch, you are cooking, not milling; keep the grater in the drawer, and the knife is your friend.