Quick Answer
How to feed a Sourdough starter is best understood by looking at the process rather than one fixed rule. This guide explains the key signs to watch, the variables that change the result and the practical next step for a home baker.
Feeding your sourdough starter is a simple yet essential process that ensures its health and vitality, leading to better-tasting bread.
Whether you’re an experienced baker or new to sourdough, mastering the art of feeding your starter is key to successful bread baking.
Follow these steps to keep your sourdough starter happy and thriving:
Understand Your Starter:
Before you begin feeding your sourdough starter, it’s important to understand its characteristics. Is your starter maintained at room temperature or in the refrigerator? Does it have a consistent feeding schedule, or do you feed it on an as-needed basis? Knowing your starter’s behavior will help you develop a feeding routine that suits its needs.
Gather Your Ingredients:
To feed your sourdough starter, you’ll need flour and water. Use high-quality, unbleached flour, such as all-purpose or bread flour, and filtered or non-chlorinated water for best results.
Add Flour and Water:
Once you’ve measured out your starter, add an equal amount of flour and water to it. The typical feeding ratio is 1:1:1 (starter:flour:water by weight), but you can adjust the ratio based on your starter’s hydration level and feeding schedule. Stir the mixture until the flour and water are fully incorporated and the starter has a smooth consistency.
Mix Thoroughly:
Mixing your starter thoroughly ensures even distribution of flour and water, which promotes consistent fermentation and a healthy microbial environment. Use a clean spoon or spatula to mix the starter until it’s smooth and homogeneous.
Cover and Let Ferment:
After feeding, cover your starter loosely with a clean kitchen towel or plastic wrap to protect it from dust and debris. Place the container in a warm, draft-free spot, such as on the kitchen counter or in a proofing box, and let it ferment until it’s bubbly and active. The time it takes for your starter to ferment will depend on factors such as room temperature, starter hydration, and feeding ratio.
Maintain Feeding Schedule:
To keep your sourdough starter healthy and active, maintain a regular feeding schedule. Depending on your starter’s needs and your baking frequency, you may need to feed it daily, twice daily, or weekly. Consistency is key to developing a strong and resilient starter.
Do I need to constantly feed my starter?
No, in fact, you can ‘overfeed’ it’ If you bake daily, feed it on the worktop before baking. If you bake weekly, then feed weekly. Use half and save half. Half goes into the bake and half goes back into the refrigerator with a snack to keep it going. But if you don’t bake that often, your starter will be happy living in the refrigerator between bakes. If you go on holiday for a while (a month, for instance), freeze it until you get back.
What do you mean by ‘overfeeding’?
When you feed your starter, you add flour and water, thus reducing the number of microorganisms in the starter. The starter then has to start rebuilding. If you keep feeding before the rebuilding has finished (and the starter is at its maximum) by feeding too often or giving it too much food, then the starter will fail and lie there exhausted. It’s one of the reasons why people kill their starters early on.
Troubleshooting:
If your sourdough starter appears sluggish or inactive after feeding, it may need more frequent feedings, warmer temperatures, or a higher hydration level. Experiment with adjustments to your feeding routine until you find the optimal conditions for your starter.
Use in Sourdough Recipes:
Once your sourdough starter is bubbly and active, it’s ready to use in bread recipes. Remember to reserve a portion of your starter to maintain its ongoing viability, and enjoy the delicious bread you’ve baked with your own homemade sourdough starter!
Feeding your sourdough starter is a simple yet rewarding process that lays the foundation for delicious bread baking adventures. With patience, practice, and a little bit of love, you’ll develop a thriving sourdough starter that will be the secret ingredient to your best homemade bread yet.
A good way to learn
Focus on repeatability before optimisation. Use one straightforward recipe, keep notes on temperature and timings, and change only one thing on the next bake. You will learn faster from three comparable loaves than from three completely different methods.

