How much sourdough starter to remove before feeding?

You discard all but a small portion of your sourdough starter (e.g., 25g-100g) to maintain a manageable amount, then feed the remainder with equal weights of fresh flour and water, often in a 1:1:1 ratio (starter:flour:water) to keep it healthy and prevent it from becoming too acidic or overwhelming. The exact amount to keep depends on how much you want to bake with, but keeping just a small amount (like 15g) and feeding it well (e.g., 50g flour, 50g water) works for frequent bakers to avoid waste.

Why do you remove some sourdough starter before feeding?

Summary: discarding before feeding keeps the microbial population balanced, prevents excess acidity and unpredictable fermentation, controls starter size and flour use, and promotes consistent baking results.

Do I stir my sourdough starter before discarding?

Yes, you should always stir your sourdough starter thoroughly before discarding any portion of it; this ensures that the yeast is evenly distributed throughout the starter before you remove a portion to feed and the rest to discard. The same goes for using it.

Can I discard more than half of my starter?

You can discard as little or as much as you want, you just have to feed whatever the remainder is with an adequate amount. I keep my starter at 50g and roughly do a 1:2:2 ratio of S:F:W or sometimes a 1:1:1 ratio at 30g. I discard 2/3 of it and feed the remainder to always maintain that same base weight.

How much sourdough starter should I remove before feeding?

Refrigerator storage: Feed once a week

Measure out 113g (1/2 cup) of the starter; discard the rest (or bake something with it). Feed this 113g of starter with 113g each water and flour. Cover it and let it rest on the counter until it starts bubbling (1 to 2 hours) before returning it to the refrigerator.

18 Sourdough Basics YOU Should Know

What are the signs of an overfed starter?

Signs of an overfed sourdough starter include lack of bubbles and rise, a runny or watery consistency, a mild, floury, or slightly sweet smell instead of tangy, and producing dense, flat bread. It often means the yeast and bacteria are diluted and struggling to ferment, appearing sluggish even after feeding, or smelling too acidic/alcohol-like if left too long without fresh food.
 

What is the biggest mistake beginners make with sourdough bread?

The biggest mistake beginners make with sourdough is not using a strong, mature starter, leading to dense loaves, often combined with impatience and ignoring key factors like fermentation cues (not time, but rise/poke test), proper hydration (too much water too soon), and heat/steam. They often rush the process, failing to build enough starter strength or understand when the dough is truly ready to shape and bake.
 

What does an overfed starter look like?

An overfed sourdough starter looks watery and thin, lacks strong bubbling activity, and might develop a strong alcoholic or vinegary smell (hooch) because the yeast and bacteria have consumed all their food and become overwhelmed. It becomes sluggish, won't rise much, and produces a gummy or flat loaf, indicating diluted yeast/bacteria, not necessarily a "sick" starter needing discarding.
 

Can I just keep adding to my discard jar?

Yes, you can keep adding sourdough starter discard to the same jar in the fridge, and it's a great way to build up a supply for recipes like pancakes, crackers, or muffins, but you should use it within a few weeks, stir it occasionally (or mix it in when adding), and be aware it will get more sour over time, making it better for savory dishes. Don't add discard to an unestablished starter, and use it up before it gets too old and funky.
 

How long do I let my starter sit after feeding it?

After feeding, leave your sourdough starter out at room temperature for 4 to 12 hours, waiting for it to peak (double in size and become bubbly) before using for baking or putting it back in the fridge, though some bakers wait only an hour before refrigerating for maintenance. The exact time depends on your kitchen's warmth, starter's strength, and feeding ratio, but generally, feed it every 12-24 hours if on the counter, or weekly if in the fridge. 

Is sourdough discard just unused starter?

Yes, sourdough discard is essentially unused, unfed, or leftover starter that has gone through its fermentation cycle (risen and fallen) and is removed before feeding your main starter to manage volume, but it can be used in recipes for flavor and texture without needing to be fully active. While traditionally thrown away, modern bakers use it in pancakes, crackers, and other recipes because it still contains yeast and bacteria, though it's not strong enough to leaven bread on its own without help.
 

How to tell if a starter is peaked?

Your sourdough starter peaks when it's doubled (or more) in size, is full of bubbles, has a jiggly, airy texture, smells sweet and yeasty (not sharp), and its surface starts to flatten or show small dips as it begins to fall, indicating maximum activity before deflation. Key signs include a full, bubbly interior, a light, marshmallowy consistency, and a pleasant, sweet, fermented aroma. 

Can you overfeed sourdough starter?

Yes, you can overfeed a sourdough starter, which dilutes the yeast and bacteria, making it weak, sluggish, and less bubbly, but it's usually not fatal and can be fixed by feeding it less or using a higher ratio of flour/water to starter. Signs of overfeeding include runny consistency, lack of rise, and an unpleasant, overly sour smell, but a properly revived starter will regain strength with correct feeding, typically waiting for it to peak before the next feed. 

What does a hungry sourdough starter look like?

*Ripe starter will be:* -doubled or more in volume -flat or slightly domed top -bubbles visible throughout, fluffy texture -yeasty smell -holds its shape briefly when scooped *Hungry starter: will be: -close to its original height -collapsed or sunken top -some bubbles, but slack and tired -runny or watery -sharp ...

Should I stir my sourdough starter between feedings?

Yes, you should stir your sourdough starter thoroughly before each feeding to ensure yeast is distributed, and you can stir it again between feeds (especially if it's in the fridge or sluggish) to incorporate air and redistribute food, but avoid constant stirring as it deflates trapped gases needed for rising. Stirring when you see "hooch" (liquid on top) or for an extra boost of oxygen are good reasons to stir between feeds. 

Is sourdough discard just hungry starter?

Yes, sourdough discard is essentially hungry starter—it's the portion you remove before feeding your main culture, so it's unfed and less active, but it still contains the same wild yeast and bacteria, offering a tangy flavor for recipes like pancakes, crackers, and waffles, though it won't provide the same lift as a freshly fed, peaked starter.
 

What is the 1:1:1 rule for sourdough starter?

The 1:1:1 method for sourdough starter is a feeding ratio using equal parts by weight of mature starter, water, and flour (e.g., 30g starter, 30g water, 30g flour), which makes it rise quickly and is good for maintenance, though higher ratios (like 1:2:2 or 1:4:4) are often used for slower fermentation or larger batches. It's a basic, balanced feeding that keeps the culture healthy and active, with the first number always representing the "seed" starter you're keeping. 

What does the Bible say about sourdough?

Sourdough, or leaven (yeast starter), appears in the Bible primarily as a metaphor for spiritual concepts like corruption (sin) or growth (the Kingdom of God), seen in parables (Matthew 13:33, Luke 13:21) and warnings (1 Corinthians 5:7), contrasting with the unleavened bread (matzah) required during Passover to remember the hurried Exodus from Egypt. While ancient Israelites used leaven for daily bread, its presence in scripture often symbolizes something hidden, spreading, or needing removal. 

What is the secret to a good sourdough starter?

A good sourdough starter is bubbly and airy, has a pleasant sweet-sour aroma, and consistently doubles in size after feeding, passing the "float test" (a small dollop floats in water) at its peak activity for optimal leavening and flavor in bread. Its texture should be stretchy and spongy, not overly runny or dense, indicating strong yeast and bacteria activity. 

Why is everyone suddenly making sourdough bread?

Sourdough is trending due to a combination of the pandemic-fueled home baking boom, a cultural shift towards traditional/homesteading lifestyles, and growing interest in gut health, all amplified by social media platforms like {!nav}TikTok and {!nav}Instagram. People enjoy the science, control over ingredients, potential cost savings, and the "health halo" that comes from its natural fermentation, which can make it easier to digest and more nutritious than standard bread.
 

How do you know sourdough is hungry?

As it gets hungry, the bubbles on top will become smaller and may look a bit frothy, while bubbles will also start appearing along the sides. Don't stir your starter, as that can be misleading; observe the bubbles forming over time to get familiar with what a healthy starter looks like.

Is it better to underfeed or overfeed sourdough starter?

Premature discarding and overfeeding will weaken your starter and elongate the process. Don't discard and re-feed a weak starter before it shows increasing bubble activity or height from the previous feeding. If you don't see more bubbles or a faster rise each day, skip a feeding, and give it more time.

What does an underfed starter look like?

What are the signs of underfeeding? The first thing I notice, when looking at an underfed starter is a very loose, placid, liquidy, almost soup-like consistency. Another key sign that the starter was underfed is the baseline of the starter in the jar is extremely high signaling no discarding has taken place.

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