starter smells like vinegar
I got some friendship starter around 7 months ago, decided to convert it to a flour/milk starter for the last 6 months. Its been producing a delicous beer smell. I needed a whole bunch of the starter for some pizza dough about 3-4 days ago, used almost everything in the bowl. Decided I'd add 1 cup flour 1 milk like normal and just see what happens.
Was surprised to see it bubbling within hours but it now smells like vinegar. Whats the deal? I keep it on my kitchen counter in a bowl with plastic wrap. Its whatever temp my house is, 68 for most of the winter but now with nice weather and windows open it can be anywhere from 60 to 80°.