Shehiya

Posted on Posted in Hilchot Shabbat
This video is class 13 of 20 in the series Hilchot Shabbat III.

In this Torah shiur (class) on Hilchot Shabbat, Rabbi Shimon Isaacson discusses the definition of shehiya (leaving food on a flame on Shabbos), and elaborates on the various types of shehiya. Rabbi Isaacson begins a discussion of how to apply these principles to using a blech, hotplate, and oven on Shabbos.

Bishul: Three Levels of Transferred Heat

Posted on Posted in Hilchot Shabbat
This video is class 8 of 20 in the series Hilchot Shabbat III.

In this Torah shiur (class) on Hilchot Shabbat, Rabbi Shimon Isaacson discusses the kli rishon (first degree of heated container), kli sheni (second degree of heated container), and kli shlishi (third degree of heated container), and explains the Halachot that refer to each, as regards to cooking or heating food on Shabbat.

Melechet Dosh, Part 2

Posted on Posted in Hilchot Shabbat
This video is class 2 of 20 in the series Hilchot Shabbat III.

In this Torah shiur (class) on the laws of Shabbat, Rabbi Shimon Isaacson teaches the Melacha of Dosh (literally Threshing), the prohibition of extracting a desired item from an undesired one . In this class, Rabbi Isaacson discusses juicing fruit on Shabbat, and whether one can squeeze a fruit on Shabbat if the liquid is not used.

Practical Applications of Psik Reisha D’la Nicha Lei

Posted on Posted in Hilchot Shabbat
This video is class 20 of 20 in the series Hilchot Shabbat II.

In his final class of Hilchot Shabbat II, Rabbi Shimon Isaacson discusses the practical applications of the laws of Psik Reisha D’La Nicha Lei. Examples such as cutting letters on a cake, turning refrigerator lights on and off by opening and closing a refrigerator doors, and eating grapefruit are discussed in this shiur.

Overview of Psik Reisha D’la Nicha Lei

Posted on Posted in Hilchot Shabbat
This video is class 19 of 20 in the series Hilchot Shabbat II.

In this class on Hilchot Shabbat, Rabbi Shimon Isaacson teaches the important Halachic concept of Psik Reisha D’ La Nicha Lei, an inevitable performance of a melacha that is not intended by the person doing the action. The class discusses the Machlokes between Tosfot and the Aruch about whether or not such actions are permissible on Shabbat.