Question:
Is it permitted to cook/boil purchased dairy equipment liquid in a meat equipment pot? Does the liquid or the pot become treif or are both kosher?
Answer:
Hello,
If the liquid is parve, i.e. it does not contain any dairy ingredients, and it was cooked using dairy equipment, it is allowed.
All the best
Sources:
Pri Megadim Mishbitzos Zahav Y:D 95:5, Hashmatos Rav Akiva Eiger Y:D 95:2