The mishnah at the bottom of 26b opens with a general statement: Everything (food) may be used to establish an eruv or effect a shittuf mavo’y except for water and salt. Rishonim disagree as to what type of eruv the mishnah is referring to. For its part, the Gemara is interested—as is its wont—in probing the mishnah’s term “everything.” The Bavli sugya contains a puzzlement, which critical Talmudic analysis might help explain.
Alyssa Gray, J.D., Ph.D., is Associate Professor of Codes and Responsa Literature at Hebrew Union College-Jewish Institute of Religion in New York. She has written extensively on many topics in Talmud and Jewish law, and has taught and lectured widely in the United States, Israel, Europe, and South America.