Learn how to build a sourdough starter that doubles predictably at home using one fixed feeding pattern, clear jar cues, and simple temperature adjustments. This ebook is designed for complete beginners who want a starter from flour and water, or want to revive a sluggish jar, without buying a starter or memorizing feeding ratios. Inside, you get a practical 3 day feeding pattern, a rescue path for stalled or sour starters, and a readiness check that tells you when your starter is actually ready for bread dough. With a clean, repeatable method and less waste at the counter, you will know when to feed, when to wait, and when your starter is strong enough to use.