Zoreh

From Halachipedia

Definition

  1. Separating the chaff from the grain using the force of wind is the Melacha of Zoreah (winnowing). [1] This Melacha also includes separating any undesired matter from a food by use of wind. [2]
  2. Separating undesired matter from food by use of artifical wind is also Zoreah. Thus, one may not blow on a mixture of peanuts and their thin outer shells to remove the shells. [3]

Applications using the wind

  1. One should not blow against the wind causing the saliva to become mist. [4]
  2. One should not shake crumbs out of a tablecloth against the wind.[5]
  3. One should not leave musty garments or books in the wind to air them out.[6]

Applications of sprays

  1. The use of aerosol cans is not in violation of Zoreh, however, one may one spray perfume or deodorant on one's body and not one's clothes.[7]
  2. One may use the spray attachment to a sink faucet on Shabbat and it is not a violation of Zoreh. (Because of Bishul one may only use cold water). [8]
  3. One may add cold water to a water vaporizer (which is already running from before Shabbat).[9]

References

  1. 39 Melachos (Rabbi Ribiat, vol 2, pg 373) quoting Rabbenu Chananel Shabbat 74a and Rashi 73a D"H Zoreah and 73b D"H Haynu.
  2. 39 Melachos (Rabbi Ribiat, vol 2, pg 374) quoting Iglei Tal Zoreah 4
  3. 39 Melachos (Rabbi Ribiat, vol 2, pg 374)
  4. Rama 319:17, 39 Melachos (vol 2, pg 375)
  5. 39 Melachos (vol 2, pg 376)
  6. 39 Melachos (vol 2, pg 376-7)
  7. 39 Melachos (vol 2, pg 377) quoting Hilchos Shabbos (Rabbi Eider) who quotes Rav Moshe, Sh"t Minchat Yitzchak 6:26, Chazon Ovadyah (vol 4, pg 242), Sh"t Yabea Omer 3:20
  8. 39 Melachos (vol 2, pg 378)
  9. 39 Melachos (vol 2, pg 378-9). Chazon Ovadyah (vol 4, pg 247) writes it is permitted if there's a need.