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Knives That Cannot Be Used for Shechitah: Difference between revisions
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Knives That Cannot Be Used for Shechitah (view source)
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# Whereas if the blade was properly cleaned of surface substances with neitzah, one would think this halacha does not apply, some argue that even if so, there's still a concern for absorption of flavor facilitated by the heat of the animal neck and the pressure of the blade. Moreover, there may still be hard to see non-kosher substances still present on the blade.<ref>Simla Chadasha 10:5</ref> | # Whereas if the blade was properly cleaned of surface substances with neitzah, one would think this halacha does not apply, some argue that even if so, there's still a concern for absorption of flavor facilitated by the heat of the animal neck and the pressure of the blade. Moreover, there may still be hard to see non-kosher substances still present on the blade.<ref>Simla Chadasha 10:5</ref> | ||
# Without kelipah, cooking the meat would require measuring if the kelipah is less than one sixtieth of the rest of the meat and then kelipah.<ref>Simla Chadasha 10:6</ref> | # Without kelipah, cooking the meat would require measuring if the kelipah is less than one sixtieth of the rest of the meat and then kelipah.<ref>Simla Chadasha 10:6</ref> | ||
# In circumstances where kelipah is required, one may not shecht with intention to afterwards do kelipah; if the kelipah would just be a stringency, then it is ok.<ref>Simla Chadasha 10:8</ref> | # In circumstances where kelipah is required, one may not shecht with intention to afterwards do kelipah; if the kelipah would just be a stringency, then it is ok.<ref>Simla Chadasha 10:8, 12</ref> | ||
# Washing the knife is insufficient to remove the adhering non-kosher substances.<ref>Simla Chadasha 10:9</ref> | # Washing the knife is insufficient to remove the adhering non-kosher substances.<ref>Simla Chadasha 10:9</ref> | ||
====''Eino Ben Yomo''==== | ====''Eino Ben Yomo''==== | ||
# If the animal was shechted with non-kosher knife that was not used for non-kosher food in the past twenty-four hours (''eino ben yomo''); although the knife should have ideally been kashered, the meat is kosher. The same is true if one is unsure if it was used in the past twenty-four hours. If there is any visible non-kosher substance on the blade, as knives are often not perfectly clean, then the rules of an actual ''ben yomo'' must be followed. Even if one thinks it was clean, there's room to be strict, unless one made sure to do a thorough job or it is a pressing situation.<ref>Simla Chadasha 10:7</ref> | # If the animal was shechted with non-kosher knife that was not used for non-kosher food in the past twenty-four hours (''eino ben yomo''); although the knife should have ideally been kashered, the meat is kosher. The same is true if one is unsure if it was used in the past twenty-four hours. If there is any visible non-kosher substance on the blade, as knives are often not perfectly clean, then the rules of an actual ''ben yomo'' must be followed. Even if one thinks it was clean, there's room to be strict, unless one made sure to do a thorough job or it is a pressing situation.<ref>Simla Chadasha 10:7</ref> | ||
# Regardless, one is not allowed to use an eino ben yomo lechatechilah unless he kashers it first. Bediavad with neitzah ten times (and no less) the meat is permissible, but, ultimately, in all circumstance, a scrupulous person should strive to do kelipah regardless.<ref>Simla Chadasha 10:7</ref> | # Regardless, one is not allowed to use an eino ben yomo lechatechilah unless he kashers it first. Bediavad with neitzah ten times (and no less) the meat is permissible, but, ultimately, in all circumstance, a scrupulous person should strive to do kelipah regardless.<ref>Simla Chadasha 10:7</ref> | ||
====''Non-Jewish Workers Cutting''==== | |||
# If the non-Jews cut the veins in the neck with their own knives right after the shechitah, some say one can be lenient since it's hard to be careful about this, but it still needs to be thoroughly washed.<ref>Simla Chadasha 10:10</ref> | |||
====Terefot==== | |||
# Due to residue leftover from shechitah on the knife, a knife that was used to shecht what turned out to be a ''terefah'' must be washed clean before it's used again. ''Hagala'' and ''neitzah'' are not necessary, since one time is not enough for the fatty substances to adhere to the blade so well, but a thorough washing and drying are necessary.<ref>Simla Chadasha 10:11</ref> After a number of ''terefot'' in a row, then ''neitzah'' would be in order, without which, further shechitot would require a kelipah to be removed. If they were alternating kosher and taref, then the ''neitzah'' would be recommended lechtechilah, but bediavad washing or drying the knife after each one would be enough to say that the meat only needs to be washed well.<ref>Simla Chadasha 10:13</ref> | |||
====Bloody Knives==== | |||
# In general, one may shecht consecutive animals without cleaning the knife or being concerned for the blood to transfer flavor to each new animal, since there is so much blood exiting the neck, so we are not concerned that any blood will enter. In the absence of bleeding from the neck, then kelipah is recommended. Regardless, it is praiseworthy to wash any raw animal neck one gets from a fresh shechitah.<ref>Simla Chadasha 10:14-15</ref> | |||
# A knife used for many consecutive shechitot has much blood absorbed into it and must be kashered via ''hagala'' or, at least, ''irui'' before cutting hot food with it; otherwise, ''kelipah'' or possibly even ''netilat makom'' would be required.<ref>Simla Chadasha 10:16</ref> | |||
# Dipping the knife into a pot of hot soup prior to ''hagala'' would require ''shishim'' against the ''kelipah'' of the knife and whatever substances are stuck to the blade. The rules of ''Ben Yomo'' and ''Eino Ben Yomo'' also inform circumstances such as these.<ref>Simla Chadasha 10:17</ref> | |||
# Even cutting something cold warrants washing the knife well first.<ref>Simla Chadasha 10:18</ref> | |||
# See the end of Yoreh Deah Siman 10 for more details. | |||
===Knives Used for Idolatry=== | ===Knives Used for Idolatry=== | ||
