Sourdough Starter No Longer Works
I have a starter the is about a month old. When it was new it used to pop the top off the pyrex container I was storing it in. I used it to bake a few loaves...some good and some not so good. It didn;t have much taste but did make the bread rise.
Recently, it seems to have lost its raising power. I've experimented with a 1:1:1, 1:2:2 and even a 1:2:2.2. It bubbles a bit but doesn't double in size or rise the way it used to, I read that this can happen with new starters. I am wondering what the problem could be. Any ideas?
Also, I read somewhere that adding some apple cider vinegar to a broken starter can fix it. Any truth to that? If so, how much shoud be added?
Edit - I just occurred to me, would the fact that I store my starter in a glass container tightly sealed with plastic wrap and a cover contribute to its downfall?