S0522 - Meleches Shabbos - (Klal 20 Siman 8) - Bishul - 25 - Ain Bishul Acher Bishul - 5_ Liquids - 1

What is Daily Dvar Halacha?

Rav Eliyahu Reingold, Rosh Kollel in the Yeshiva of Greater Washington, spent many years learning in the Telshe Yeshiva and Kollel where he was recognized as one of their foremost talmidim. He taught in the Telshe Mechina before coming to the Yeshiva of Greater Washington. He is a noted Baal Halacha and Baal Mussar, serving as a well-respected posek for the Yeshiva and community. Besides his responsibility in leading the Kollel, he delivers a high level shiur to advanced students, and provides many halacha shiurim throughout the year. His heartfelt weekly mussar shmuess in an inspiration to all.

This podcast is powered for free by Torahcasts.
Start your own forever free Torah podcast today at https://torahcasts.com/sign-up/ and share your Torah with the world.

Bishul 25 - Ain Bishul Acher Bishul - 5; Liquids 1 (Klal 20 Siman 8) S0522

We are beginning siman 8, where the Chayei Adam discusses bishul achar bishul regarding a davar lach. The Chayei Adam discusses a case of recooking a fully cooked item, and avoids discussing an item which is partially cooked, known as maachal ben derusai. If something is cooked to a minimum such that it is no longer raw and would be eaten in extenuating circumstances, it is considered cooked to the threshold of maachal (the food of) ben derusai. (Ben Derusai was a known bandit who was always on the run. He would cook his food minimally in order to avoid remaining in one spot for too long.)

Cooking food from raw to maachal ben derusai is certainly considered bishul, because it has changed its status. However, seeing that most people would not eat such a food unless it is extenuating circumstances,
bringing a food from maachal ben derusai to mevushal kol tzorcho (fully cooked) arguably should be bishul as well.
Once a food is mevushal kol tzorcho, there is a concept of mitztameik veyafeh lo, that even after being fully cooked a food continues to improve by being left on the fire.

The most classic example of this discussion is cholent, 1) which is somewhat cooked erev Shabbos, but already at least minimally edible (maachal ben derusai), 2) often fully cooked by Friday Night (mevushal kol tzorcho), 3) and still improves when left on the fire throughout the night (mitztameik veyafeh lo). At some point, if it is left on the fire for too long,4) it ends up becoming mitztameik vera lo, where it is no longer beneficial.

It is a machlokes rishonim whether bishul achar bishul is relevant to the first two levels, i.e., from maachal ben derusai to mevushal kol tzorcho. Ain bishul achar bishul is certainly relevant to the last level, mitztameik veyafeh lo and mitztameik vera lo

The Tur is machmir that going from maachal ben derusai to mevushal kol tzorcho is considered bishul. The Beis Yosef follows the Tur. The Biur Halacha brings a list of rishonim in both directions, and concludes that one should be machmir due to the potential issur deoraysa. Once it has reached the state of fully cooked, even if it will continue to improve, it is no longer considered cooking to return it to the fire. This is known as chazarah, and, assuming one meets certain criteria, it would then be muttar to return it to the fire.

Summary
Bishul achar bishul regarding a davar lach will depend on the state of the food. If the food is anywhere between maachal ben derusai and mevushal kol tzorcho, we are machmir for bishul achar bishul to cook it further.
This is true with a davar yavesh as well.