For the source text click/tap here: Avodah Zarah 72
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The Mishna on our daf is concerned whether when wine is poured into a barrel containing forbidden wine, perhaps the connection between the liquids will cause the permitted wine to become prohibited, as well. This theme leads to a number of warnings made to Jews who dealt with wine, as described by the Gemara.
Steinsaltz remarks "We find many pictures from the ancient world that show groups of people drinking from a single vessel by means of tubes and siphons. Some suggest that the words used in the Gemara to describe this – gishta and bat gishta – are related to the Persian word “to suckle” although the philological evidence is not clear.”
we explore the concepts of nitsok (stream), katafres (descending water), and mashkeh tofe’ach (moistening liquid)—and compares these ancient understandings with modern scientific knowledge of fluid dynamics, microbiology, and contamination theory.