a) Yalta makes a statement on 109b that for everything that's asur d'oraita, the Torah has something corresponding that's mutar d'oraita. An example is the udder. It is a meat sac with milk in it. Yet, according to the mishna, if one doesn't drain the milk out of it before cooking it, one doesn't transgress an issur d'oraita because the milk isn't milk. If I understand that correctly, then why would Yalta suggest that K'chal is one way to eat milk and meat together if it's really not milk?
b) Once the milk is drained from the udder, what is its status? I assume that d'oraita it's not considered real milk because the Torah doesn't prohibit milk from a slaughtered animal and therefore one could d'oraita cook meat in that milk. But d'rabanan it's prohibited lest anyone think that one is permitted to cook meat in real milk. Is that correct?
c) If the k'chal is cooked with the milk in it, may one eat the milk-filled k'chal? D'oraita, I imagine the answer is yes because it's not really milk because the milk is being used after the animal had been slaughtered. D'rabanan, it's mutar b'deavad and asur l'chatchila. Is that correct?
Thank you.
Lee Buckman, West Bloomfield, MI
(a) Yalta wanted to experience the taste of meat and milk but she did not want it to have a Din of meat and milk. As you say, the milk of a slaughtered animal does not possess the Din of milk (see Gemara below 111a) but it does have the taste of milk, because physically speaking it is real milk so by roasting the Kechal, Rav Nachman was giving his wife the taste of meat and milk in a totally permitted form.
(b) Correct. The Gemara (below 113b) derives from the verse "In the milk of its mother" - and not in the milk of a slaughtered animal - that milk that emerges after Shechitah is permitted mid'Oraisa to cook with milk.
(c) Correct again. What you wrote is stated explicitly in Shulcahn Aruch YD 90:1. The Taz (#1) writes that the Rambam maintains that the milk of a slaughtered animal is forbidden mid'Rabanan to cook with meat but Chazal only made a Gezeirah when the milk fell on its own into a meaty pot, while if it came out of the Kechal and then was re-absorbed inside it they did not make a Gezeirah.
KOL TUV
Dovid Bloom