You are wondering if the mother is still good? I would think so.
Yeast freezes and works fine . It keeps longer too. Don't toss it. But you can try to see if it still works with some juice, and if not order some for next year.
the regular stuff is in the cupboard but the raw stuff says to refrigerate. It still smells like vinegar and thanks...but I wont be tasting it.
Ive read the benefits on here and Ive switched from the regular stuff after originally buying it only for the chickens. Thanks again, im guessing its still ok. And I will move it to the door. And pray I can get a new fridge soon.
Vinegar is an acid. A mild one, but still an acid. Make sure it is COMPLETELY thawed or you will have a stronger concentration than you expect. The water that is frozen is not in solution, so it would make it stronger if it is not completely thawed.