So I got ready to brew the other day by starting up a starter with a lager yeast- all went well until my back went out and now brew day has been cancelled. I don’t forsee me lifting heavy things for awhile. Is it possible to salvage the starter? This was the first starter I made with my new stir plate and it looks like everything went great- right now its just sitting in my fridge with foil over the top of the flask. How long can it keep and should I change to an airlock?
It’ll be good just the way you’ve got it for several weeks. After that, to use it, you’ll probably want to “wake it up” by adding some fresh wort.
If you want to store it for a long time, make sure you protect it from oxygen. Transfer it to another container with a lid that you can tighten. Then do a ‘wake up’ with the yeast on your stir plate with fresh wort before you need it.