I just want you to know this is not a panicked thread where I am debating wether or not to keep my yeast. From what I have read sour smells dont mean the starter is bad.
That being said.....i made a starter yesterday afternoon with WLP001. I have used this yeast many times and have made a starter every time I have used it. The starters usually have a strong yeasty/bready smell (which I kinda like). I just gave my starter a sniff and it smells sour. Best way I can describe it is like sour dough yeast. The only difference from my other starter and this one is on this one I used a stir plate. I have never used a stir plate before so I was wondering if this is normal. The only thing I can think of is that the beer is more oxidized because of the stir plate. Could that cause a sour smell?
That being said.....i made a starter yesterday afternoon with WLP001. I have used this yeast many times and have made a starter every time I have used it. The starters usually have a strong yeasty/bready smell (which I kinda like). I just gave my starter a sniff and it smells sour. Best way I can describe it is like sour dough yeast. The only difference from my other starter and this one is on this one I used a stir plate. I have never used a stir plate before so I was wondering if this is normal. The only thing I can think of is that the beer is more oxidized because of the stir plate. Could that cause a sour smell?