Sugya – מעשה שבת
Question:
Can one drink milk that was milked and processed on Shabbos by a plant that is owned by a Jew?
What is the halacha if someone intentionally cooks on Shabbos for a specific person? Can the person eat the food after Shabbos?
Learn מגן אברהם ס’ שי”ח ס”ק לא starting from נ”ל דלמי שנתבשל בשבילו”
https://hebrewbooks.org/pdfpager.aspx?req=14325&st=&pgnum=152
Learn משנה ברורה ס’ שי”ח ס”ק ה
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=271
Is there a difference if the person is cooking or making the item in order to sell?
Learn שו”ת כתב סופר או”ח ס’ נ’ ענף א
https://hebrewbooks.org/pdfpager.aspx?req=950&pgnum=97
Does the fact that you are purchasing the milk from a store and not directly from the manufacturer if more of a reason to permit purchasing it?