Very quickly review the גמרא דף לח: “בעי רב אשי פינה ממיחם למיחם (line before the Mishna) until the Mishna
Question:
What is the uncertainty in the case of פינה ממיחם למיחם (transferring the food to a different pot) whether it is permitted to return the second pot to the stove?
Clarify how the explanation of רש”י “פינה is different than תוס’ “פינה
Major Question:
Tosfos says there is a potential concern when one transfers hot food into a second pot that one might come to stoke the coals. How could there be a חשש שמא יחתה when we are dealing with a stove that is גרוף וקטום?
Learn ר”ן דף יז: דפי הריף “בעי רב אשי for an additional two answers
How are the two explanations of the Ran different than each other?
How are the two explanations of the Ran different than Tosfos?
According to the Ran what is the Halacha in regards to returning the second kettle to the fire. Is it permitted or prohibited?
Halachic Conclusion:
What is the halachik conclusion of פינה ממיחם למיחם ?
May one transfer the contents of a Crock-Pot into a second pot and return the second pot to the fire?
See טור ס’ רנ”ג סעיף ב
See beginning of שולחן ערוך ס’ רנ”ג סעיף ב
Learn מגן אברהם ס’ רנ”ג ס”ק כ
https://hebrewbooks.org/pdfpager.aspx?req=14325&st=&pgnum=25
And ה’ רע”א אות ז
Is the note of Rebbe Akiva Eiger arguing on the Magen Avraham or explaining the Magen Avraham?
Learn משנה ברורה ס’ רנ”ג ס”ק נה
https://hebrewbooks.org/pdfpager.aspx?req=60388&st=&pgnum=49
And שער הציון אות מז
The Ran says if one returns the contents back to the original pot it is possibly prohibited to return the pot to the fire as it is considered he placed the pot on the ground when placing it into the second pot. Why would this reasoning not prohibit returning the second pot itself to the fire?
See קובץ הלכות פרק כו הערה עג
According to the Mishna Berura is it permitted if the water is placed into a cup and then poured into the Crock-Pot?
See שמירת שבת כהלכתו פרק א הערה מט
According to the Magen Avraham is it permitted to add hot water directly from a hot water urn into a crock pot?
See תוס’ דף לח: פינה