How do I create a sourdough starter from scratch, and how long does it typically take to become active?

Question

How do you create a sourdough starter from scratch? Get the basic steps and find out how long it typically takes for a new starter to become active.

Answer 1

To create a sourdough starter, mix equal parts flour and water, let it sit at room temperature, and feed it daily by discarding half and adding fresh flour and water. It typically takes 7-14 days for the starter to become active and bubbly.

Detailed Explanation:

Creating a sourdough starter from scratch is a rewarding process that requires patience and consistency. Here's a step-by-step guide:

1. Day 1: Initial Mix: In a clean jar or container, mix equal parts (e.g., 50g) of whole wheat flour and unchlorinated water (bottled or filtered) until a smooth batter forms. Whole wheat flour contains more natural yeasts and bacteria to kickstart the process.

2. Day 2: Rest: Cover the jar loosely with a lid or cloth and let it sit at room temperature (ideally 70-75°F or 21-24°C) for 24 hours. You might not see any activity yet, and that's perfectly normal.

3. Day 3-7: Feeding: Discard half of the starter (about 50g). Add equal parts (e.g., 50g) of all-purpose flour and unchlorinated water to the remaining starter. Mix well. This is called 'feeding' the starter. Cover and let it sit at room temperature for another 24 hours. Repeat this process daily.

4. Observe: Over the next few days, you should start to see signs of activity, such as bubbles forming and the starter increasing in volume. The starter might also have a slightly sour smell.

5. Day 7-14: Continued Feeding: Continue the daily feeding process. As the starter becomes more active, you may need to feed it twice a day (every 12 hours) if it's doubling in size quickly after each feeding. A mature starter will reliably double in size within 4-8 hours after feeding.

6. Testing for Readiness: To test if your starter is ready to bake with, drop a small spoonful into a bowl of water. If it floats, it's ready! If it sinks, continue feeding it for a few more days.

The time it takes for a starter to become active can vary depending on factors like temperature, humidity, and the type of flour used. Generally, it takes between 7 and 14 days.

Pro Tip:

Use a rubber band to mark the initial level of your starter after feeding. This makes it easier to see how much it has risen and helps you determine its activity level. If you see mold, discard the entire starter and begin again with a clean jar and fresh ingredients.