Your starter will stay strong and usable as long as you keep feeding it. But what if life takes over and you’re no longer getting enough time to bake sourdough bread as much as you used to.Can you freeze it, or will that kill off all the yeast in your starter?
Although a brand new sourdough starter can take anything from 1 to 3 weeks to become active enough to make bread with, it contains a living community of bacteria and yeast that continue to evolve and grow.
So if you’ve just made your sourdough starter, it’s not really a good time to freeze it. You’ll need to maintain it and continue to refresh/feed it until a good few months before it’s strong enough to freeze.