Chullin 33: Slaughter and Ritual Impurity

Today's daf includes a new Mishna which speaks of what happens when one slaughters certain animals. When one slaughters a domesticated animal, an undomesticated animal or a bird and there was no blood during the slaughter, they are permitted for consumption.  In fact they do not require ritual washing of the hands; they may be eaten with ritually impure hands because they were not rendered susceptible to ritual impurity through contact with blood.

Blood is one of the seven liquids that render food susceptible to impurity.  Rabbi Shimon argues that they were rendered susceptible to ritual impurity by means of the slaughter itself.

The Gemara focuses on stages of ritual impurity and the possibility that one might render oneself or another object ritually impure.