I had to make a yeast starter to make sure my yeast was still alive for this brew
Here is the liquid yeast I’m working with:
Good Instructions
https://homebrewacademy.com/how-to-make-a-yeast-starter/
These instructions were very clear.
19-24 C is okay
It took 3 days for my yeast to start. It is a low temperature lager yeast.
Resources
https://homebrewacademy.com/how-to-make-a-yeast-starter/
and video
https://www.youtube.com/watch?v=6LfKpBR78Qc&t=2s
https://www.beercraftr.com/yeast-washing/
https://homebrewacademy.com/frozen-yeast-bank/ - Frozen yeast bank!
mr malty uses 2 litres as well.