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Crushing On Shabbat

The Daily Halacha Moment - Crushing On Shabbat 🥠

״כל השונה הלכות בכל יום - מובטח לו שהוא בן העולם הבא״ (נידה עג ע״א, מגילה כח:)

“Anyone who studies Halachot every day is guaranteed that he is destined for the world-to-come” (Megilla 28b, Niddah 73a)


May one crush something that has been previously crushed on Shabbat?


Tochen does not apply to an item that has been previously ground. Therefore, an item that has been completely ground and subsequently becomes bound into a united mass may be broken apart and crushed once again.[1] Examples of such items include:

a. Crushing a cookie, matzah, or cake into crumbs.[2]

b. Crushing a tablet of medicine into a powder.[3]

c. Crushing a sugar cube or clumps of loose sugar. [4]

d. Crushing a clump of smelling tobacco.[5]

e. Some state that it is permitted to crush a block a chocolate.[6]

Even when crushing an item that is permitted to be crushed because it was previously crushed, one may not use an instrument that is specifically used for grinding or crushing.[7]

Excerpted from R’ Yonatan Nacson’s ‘Laws of Shabbat’, vol. 1 p. 376-377


[1]. Rama 321:8 and 12; Ben Ish Chai, Mishpatim 2:1; Chazon Ovadia, Shabbat, vol. 4, pp. 251-252.

[2]. Rama 321:8

[3]. Shemirat Shabbat KeHilchatah 33:4; Rivevot Ephraim, vol. 5, 260:3; Orchot Shabbat 5:22.

[4]. Rama 321:8; Mishnah Berurah 321:30; Kaf HaChaim 321:50.

[5]. Ben Ish Chai, Mishpatim 2:7; Kaf HaChaim 321:69; Halichot Olam, vol. 4, p. 127.

[6]. Shemirat Shabbat KeHilchatah 6:11; Hilchot Shabbat b’Shabbat 12:8. See also Orchot Shabbat 5:21, footnote 40.

[7]. Mishnah Berurah 321:30; Biur Halachah 321:12, “Lefarer”; Chazon Ovadia, Shabbat, vol. 4, end of p. 251.

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