Question:
Can the boiling water used for kashering utensils be reused for cooking? For example, to cook noodles.
Answer:
We do not reuse the water that was used to kasher for drinking. Although it can be argued that the non kosher taste is botil and nat bar nat, nevertheless this is the minhag
Sources:
Rema Y:D 121-2, Gr"a ibid-6.
