More Discussions for this daf
1. Borer 2. Rava and Abaye 3. Tosofos DH v'Chi Mutar
4. Borer According to Rashi 5. Maga B'Tumas Meis vs. Maga B'Mais 6. Listing Ofeh insted of Bishul
7. Why can't we asked Rav Chisda's question on Abaye? 8. Why aren't temporary knots prohibited? 9. Kotesh
10. Prohibition Of Medicine Use 11. The Shi'ur of Chalah for practical purposes 12. משכן מקדש
13. בורר ואוכל בורר ומניח 14. הבורר תורמוסים מתוך פסולת 15. האי מאן דשדא סיכתא לאתונא
16. האי מאן דעבד חלתא

yosef asked:

What Av Melachah is one violating if he performs kotesh (pounding)?

yosef, Boston, America

The Kollel replies:

Rashi writes that Kotesh is similar to 'Dash' (threshing). This is because its function is to remove the outer kernel of the wheat grains, which is basically what Dash achieves.

be'Virchas Kol Tuv

Eliezer Chrysler.