Made a yeast starter Friday went in fridge sat night. Something came up and I may not be able to brew for a while. How long will it last in the fridge?
For me, I’m not worried for 2 weeks.
I’m generally worry free for 4 weeks.
After that, I’l still use it but will feed it up a bit to get it active.
Having said that, I will also admit that I’ve used it 6 weeks in with no problems (I just pitch more of it than I normally would). Never had any issues with regard to flavor or performance.