Day 4, 5, 6: KEEP FEEDING
Keep feeding your starter as you did day 3-4:
As the yeast begins to develop, your starter will rise, and bubbles will form on the surface and throughout the culture. When the starter falls, it’s time to feed it again.
Day 7: YOUR STARTER IS READY!
By now, your sourdough starter should have doubled in size. You should see plenty of bubbles, both large and small. The texture will now be spongy, fluffy. It should also smell pleasant.
Your starter is ready when it shows all of the following signs:
If these conditions are met, your starter is now active. Either you start baking right away. Or you can put it in a clean jar in the fridge until you want to use it for baking.
Wondering if your starter is ready to use? Do the float test: Drop a teaspoon of bubbly starter in a jar of water; if it floats to the top you can use it.
STORAGE OPTIONS
Once your starter is established, you have two storage options to consider.
At room temperature: If you bake a few times a week—store your starter at room temperature. This will speed up fermentation, making the starter bubbly, active, and ready to use faster. Feed the starter once or twice a day.
In the fridge: If you don’t bake that often, you can store your starter in the fridge, loosely covered or with a lid. You’ll only need to feed it about once a week or so, to maintain its strength when not in use. When you are ready to make dough, feed your starter at room temperature as needed, to wake it back up.