Is one who cuts vegetables finely on Shabbat liable for grinding?

ShabbatGrinding and Cutting

Synopsis

The Mechaber rules that cutting vegetables finely constitutes the melacha of grinding. Major dispute exists among Rishonim: Rashi and Rambam hold grinding applies to vegetables, Tosafos and Rosh hold it does not apply to food items at all, and the Rashba/Ran hold it is only prohibited when cutting for later but permitted when cutting to eat immediately.

Early Acharonim
Late Acharonim
Lenient
Strict
Lesser cited
Major authority

Discussion

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