I did a starter with California Ale Yeast WLP001 with my stir plate. I had to leave town for several weeks and forgot to transfer it to a sealed container for long term storage.
This was the result: https://imgur.com/a/br0Ju5q
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If you use this yeast so much and like it, why don't you just use US-05? Cheaper, easier to use, and it keeps for years (not weeks). Two packs for less than one pack of WLP001 and more than 4 times the number of cells, with the added bonus that you don't have to worry about aeration.
SMH
They are a little different. There's a exBEERiment on these two.
Are you trying to say that the difference makes enough to matter?
...
It's the same yeast.
Neat!
Meh, Pitch it and see what happens.
RDWHAHB
Don't do that unless you want to infect the entire batch.
Didn't think I needed the /s on that
Lol sorry. I had to look up what /s means too btw.
The thing is, some folks here do this intentionally to a degree
Why did you make a starter several weeks before you were going to brew?
I was going to keep it in the fridge and do a second, bigger starter after coming back. The idea was to cultivate a lot of this yeast because I used it a lot for IPAs
Gotcha. I would just get a new pack or if you have a sachet of US-05 and are looking to brew this weekend just use that.
Definitely wouldn’t pitch it. Spend a few bucks and do it again. I had a starter going for 4 days thanks to a delayed brew and it stalled at 1.040. Same yeast strain as well.
I use it so much of this particular yeast. I wanted to just get a whole bunch of it for storage. Unfortunately I only have a 1L beaker so I have to do multiple stages of starters to get what I need.
I believe US-05 is the same strain, you might consider buying a bunch of it and not bothering with starters. Keeps for years in the freezer.
I would definitely not pitch that. It looks Brett infected to me.