Rabbi Baruch Bodenheim: Gemara Shabbos: Borer – Monday – Kislev 19 – Daf 74a – One item (12/08/25)

Borer on the same item

Is it permitted to select and separate the large pieces from the smaller pieces of the same item?

Do we rule like the תרומות הדשן ?

https://www.hebrewbooks.org/pdfpager.aspx?req=1835&pgnum=28

Learn שולחן ערוך אורח חיים ס’ שי”ט סע’ ג

https://www.hebrewbooks.org/pdfpager.aspx?req=40527&st=&pgnum=263&hilite=

Learn ט”ז ס”ק ב who brings multiple proofs that there is Borer by one time of food item. 

Clarify all the proofs of the Taz

https://www.hebrewbooks.org/pdfpager.aspx?req=14211&st=&pgnum=157&hilite=

Do we rule like the Taz?

Learn משנה ברורה 

Are the following items considered one species of two species?

Grilled and boiled food items 

Chicken breast and a chicken legs  

Different types of apples 

Whole matza and broken pieces 

White part of an egg and the yolk

See אורחת שבת חלק א פרק כ סע’ לב-לז

And קובץ הלכות חלק ב פרק כזה סע’ י”ח – מח