What is the best feeding method for sourdough starter? While there is so much information that circulates on the “best feeding guide” for a sourdough starter, it really boils down to your personal routine as well. The two most common sourdough feeding ratios used by home bakers are 1:1:1 and 1:2:2, both of which support a healthy, active sourdough starter when used correctly. What do sourdough feeding ratios actually mean? 1:1:1 ratio means:  1 part starter 1 part flour 1 part water Example:50g sourdough starter + 50g flour + 50g water 1:2:2 sourdough feeding ratio means: 1 part starter 2 parts flour 2 parts water Example:30g sourdough starter + 60g flour + 60g water What is meant by feeding a sourdough starter? Feeding a sourdough starter means adding fresh flour and water to a living culture of wild yeast and bacteria so it remains active, strong, and healthy. Over time, the microorganisms consume the available nutrients in the starter, so feeding replenishes their food source and supports ongoing fermentation. This process helps the starter produce gas, rise, and develop flavour, which is essential for baking sourdough bread. Regular feeding keeps your active sourdough starter balanced and ready to use. Without feeding, the starter can become weak, overly acidic, or inactive, making it less effective for creating light, well-risen loaves. What is the difference between a 1:1:1 and a 1:2:2 feeding ratio? The difference between a 1:1:1 and a 1:2:2 feeding ratio in a sourdough starter comes down to how quickly the starter ferments, how high it peaks, and how stable it remains over time. In a 1:1:1 feed (equal parts starter, flour, and water), the starter has a relatively small amount of fresh food compared to its existing microbial population, so fermentation happens quickly. This means it will typically reach its peak within 4–6 hours at room temperature (22 degrees celsius), rising fast but often collapsing fairly quickly. Because the microbes consume available sugars rapidly, the starter can become more acidic, which may weaken yeast activity if repeated over time without frequent feeding. In contrast, a 1:2:2 feeding ratio provides significantly more fresh flour and water relative to the starter, effectively diluting acidity and giving the yeast and bacteria more resources to work with. As a result, fermentation is slower and more controlled, with the starter usually peaking between 4–9 hours depending on temperature. The peak itself is often stronger and more stable, with a higher rise and longer window before collapse. This creates a more balanced microbial environment, supporting stronger yeast activity and more consistent sourdough baking performance. In practical terms, a 1:1:1 feed is useful when you want a quick rise or are maintaining a starter regularly, while a 1:2:2 feed is better for building strength and preparing a starter for baking, as it produces a more robust and predictable peak. When should I use the 1:1: ratio? Use a 1:1:1 feeding ratio when you want a simple, efficient way to maintain an already healthy sourdough starter or when you need it to peak quickly for baking. This ratio is ideal for daily feeding at room temperature, as it keeps the starter active without using large amounts of flour. Because it ferments faster, typically peaking within a few hours, it works well for same-day baking or when you’re short on time. It’s also a great option for beginners wanting to reduce waste. However, it’s best used when your starter is already strong and stable, not when it needs rebuilding. When should I use a 1:2:2 ratio? You should use a 1:2:2 feeding ratio when you want to strengthen your sourdough starter and create a more stable, predictable rise for baking. This ratio provides more fresh flour and water, giving the yeast and bacteria extra nutrients to develop, resulting in a stronger, more balanced active sourdough starter. It’s ideal to use before baking, especially if your starter has been in the fridge, seems sluggish, or smells overly acidic. Because it ferments more slowly and peaks over a longer period, it offers a wider window for baking. This method helps improve structure, flavour, and consistency in your sourdough bread. How does temperature affect sourdough feeding ratios? Sourdough feeding ratios like 1:1:1 and 1:2:2 interact closely with temperature, as heat directly affects fermentation speed. At warmer temperatures around 24–26°C, a 1:1:1 starter will ferment very quickly, often peaking in 3–4 hours, while a 1:2:2 feed slows activity slightly, peaking in 4–6 hours. At moderate temperatures of 20–22°C, 1:1:1 may peak in 4–6 hours, and 1:2:2 in 6–8 hours. In cooler conditions around 18°C or below, both ratios slow significantly. Higher ratios are especially useful in warm environments to prevent over-acidification and maintain a healthy sourdough starter. If temperature is a challenge in your house, you can overcome this by using a heat mat to create the optimum temperature for your sourdough starter needs.  Can I feed my starter in the same jar? Yes, you can feed your sourdough starter in the same jar, and many home bakers do this for convenience. As long as the jar is kept reasonably clean and not overly coated with old starter residue, it works perfectly well. After each feeding, it’s helpful to scrape down the sides to prevent buildup, which can dry out and potentially harbour mould. Occasionally transferring your starter to a clean jar is a good practice to maintain hygiene and freshness. Using the same jar simplifies your routine and reduces dishes, making it easier to maintain a consistent feeding schedule for a healthy, active sourdough starter. How do I tell if a starter needs to be fed? You can tell a sourdough starter needs feeding when it shows signs of hunger and reduced activity. It may stop rising, look flat or deflated, and have fewer bubbles than usual. A layer of liquid (called hooch) may form on top, and the smell can become sharp or overly sour. The texture may also become runny. A healthy, active sourdough starter should be bubbly and lively, so when it loses that energy, it’s time to feed it. What does an overfed starter look like? An overfed sourdough starter often looks sluggish and lacks activity because the yeast has been diluted too much. It may have few bubbles, rise slowly, or struggle to double in size after feeding. The texture can appear overly thick or pasty, and the smell may be mild or floury rather than pleasantly sour. This happens when too much fresh flour and water are added too frequently, reducing the strength of the microbial population in the starter. What happens if I don't feed sourdough starter for a day? If you don’t feed your sourdough starter for a day, it will begin to run out of available nutrients, causing the yeast and bacteria to slow down. The starter may become less bubbly, develop a more acidic smell, and possibly form a layer of liquid (hooch) on top. While missing a single feeding isn’t usually harmful, repeated neglect can weaken the starter, making it sluggish and less effective for baking sourdough bread. At room temperature, it will decline faster, whereas in the fridge it can tolerate longer gaps. A simple feeding will usually restore its activity and strength. Can I use my sourdough starter if I fed it 12 hours ago? Yes, you can use your sourdough starter 12 hours after feeding, but it depends on its activity and environment. Ideally, a starter is best used at or just after its peak, when it has doubled in size, is full of bubbles, and has a slightly domed surface. After 12 hours, especially at room temperature, it may have already peaked and begun to fall, meaning it’s still usable but slightly less active. It will still ferment your dough, but may produce a slower rise. For best results, learn your starter’s timing and use it when it’s at its most active. Can I split my starter into two jars? Yes, you can split your sourdough starter into two jars. This is a common practice for sharing, backup, or experimenting with different flours or feeding schedules. Simply divide the starter evenly and continue feeding each portion as usual to keep both active and healthy. Do I have to discard every single time I feed my starter? No, you don’t have to discard every single time you feed your sourdough starter, but some removal is usually needed to keep it balanced. Discarding helps control the size of your starter and prevents it from becoming overly acidic or diluted by constant feeding. If you never discard, you’ll end up needing large amounts of flour to maintain it. However, you can reduce waste by keeping a smaller starter or using discard in recipes like pancakes or crackers. Some low-discard methods exist, but the key is maintaining a healthy ratio of starter, flour, and water. The best amount to aim for after feeding is a total of 150g starter. For example, 50g starter plus 50g flour plus 50g water. This is because most sourdough bread recipes call for around 100g starter, which means you will be left with 50g- perfect amount for feeding without wasting too much through the discarding process.