Talking Talmud

More on nullification of a non-kosher food in the greater quantity of a kosher food. In accord with the view that said 100x more than the non-kosher food was necessary, but the idea that it should be 100x seems off to Abaye -- at least if the claim is that that quantity is necessary for all prohibited food in this kind of mixture, but that's illogical. Also, do sinews contain flavor? Do they impart flavor?

The question of 1 in 60 vs. 1 in 61, and the conundrum of eggs -- where they are all counted, and including in the same food -- depending on the ratio of non-kosher to kosher. The kosher food essentially dwarfs the non-kosher food to nullify it. Also, the source texts from the rulings regarding the nazir. With a question of whether the ration is 1/60 or 1/100.

When foods get mingled, and you need to determine whether you can eat the kosher food, or whether the contamination of the non-kosher with the kosher. Plus, how to pull away the non-kosher/forbidden fat, and leave the kosher meat behind, with no flavor of the forbidden fat added to the taste of the otherwise kosher food. Determining whether the non-kosher food imparts flavor -- one needs a non-Jewish "taster," a gourmand or a chef, who knows the taste of the non-kosher food and has the ability to determine whether that non-kosher taste is present in the kosher food (and therefore rendering it non-kosher). Also, determining how much non-kosher food can be present in a mixture with kosher food, primarily via whether it imparts flavor. Which leads to the discussion of 1/60th of the sum total. And the classic example of a cow's udder, that is meat and has milk in it.

2 mishnayot! 1 - Which part of the sciatic nerve incurs a violation of the prohibition? And how much would one need to eat to be liable? Including a dispute and the distinction between what was prohibited at the biblical level of prohibition and what was prohibited at the rabbinic level. With an acceptance of diversity in the practice of kashrut that seems radical for many in this day and age. 2 - What happens when the gid ha-nasheh is imparting flavor to your meat? If it were not imparting flavor, you might well be able to eat that meat. But if it does, then you have to treat it as prohibiting the meat as well. But how do you know whether the sciatic nerve is providing flavor?

The case of meat that is held by a non-Jew: what if it wasn't supervised continually? According to Rav - that's prohibited as a caution against the possibility that the kosher meat was swapped out for non-kosher meat. Which leads to a discussion of that likelihood, as the Gemara argues against Rav. Also, if the meat were unsupervised at any time, was it a stringency to not eat it, or was that required? With a story about a ferry and a festival. Which leads into discussion of how the sages used portents -- not quite divination, but some inference from "signs" that are established three times.