The Mishna states that when Yom Kippur fell on a Friday, preventing the meat from being cooked, the Babylonians would eat the goat sin offering raw. Rabbi Yochanan clarifies that these people were actually Alexandrians, but they were called Babylonians due to a general dislike of the Babylonians.

The Mishna discusses various errors that can occur while setting up the showbread and the frankincense, such as placing one or both on the wrong day or burning the frankincense at the incorrect time. For each scenario, the text explores the resulting legal status and the solution, if there is one.

A Mishna from Tractate Yoma mentions a case where the Tamid offering was brought too early and had to be burned because it was disqualified. A braita applies this same rule to a mincha offering where the kemitza was taken at night. This raises a question: if sanctified vessels do not normally sanctify their contents at night when offerings cannot be brought, why is the mincha disqualified? To resolve this, it is explained that the offering is sanctified enough to be disqualified even if it is not sanctified for the altar. However, Rabbi Zeira raises a difficulty from our Mishna, noting that when the bread is placed too early, it is not sanctified enough to be disqualified and can remain on the table for extra days. Raba resolves this by distinguishing between an act performed the night before it is due and an act performed several days early. Yet, this distinction still faces issues with the Mishna's case, as the bread should theoretically become sanctified on Friday night and be disqualified by the next Shabbat morning. Ultimately, two resolutions are offered to address this difficulty.

The Mishna outlines how many days after baking the two loaves and the showbread may be eaten. Different scenarios are presented based on whether festivals fall before or after Shabbat, since these loaves cannot typically be baked on Shabbat or a festival. Rabbi Shimon disagrees with this, permitting the baking on a festival though not on Shabbat.

Items whose value is sanctified can be redeemed whether they are ritually pure or impure. However, items sanctified within a sacred vessel possess inherent sanctity and cannot be redeemed even if they become impure. The only exception to this rule is a blemished animal, which retains the possibility of being redeemed despite its status.

Menachot 100 - Yom Hazikaron - April 21, 4 Iyar