Sourdough Starter 101

Sourdough Starter 101

Counter vs. Fridge, Feeding Ratios, and What’s Easiest

If you’re new to sourdough, you’ve probably already asked yourself:

Should my starter live on the counter or in the fridge?
Which is easier? Which is better?
And how do I actually feed it once I decide?

Take a deep breath. We’ve got you.
Most of us Googled the exact same things.

This guide is written for beginners who want sourdough to feel doable, not overwhelming.

First, a mindset shift

Your starter is not fragile.
You are not going to ruin it by choosing the counter or the fridge.

Starters are resilient and adaptable.
There is no single “right” way — the best option is the one that fits your life.

Counter or fridge: what’s the difference?

Keeping your starter on the counter

When your starter lives on the counter, it stays at room temperature and is fed regularly, usually once every 24 hours. This keeps it active and ready to bake.

Best for:

  • People who bake often
  • Beginners who want to learn how their starter behaves
  • Anyone actively practicing sourdough

Why people like it:

  • You can watch your starter rise and fall daily
  • You learn timing and fermentation faster
  • It’s usually bake-ready

Things to keep in mind:

  • It needs daily feeding
  • It creates more discard
  • It requires a bit of routine

For many beginners, the counter is actually the easiest place to start because you learn faster by watching your starter change in real time.

Keeping your starter in the fridge

When your starter lives in the fridge, fermentation slows way down. Instead of daily feedings, you feed it about once a week.

Best for:

  • People who bake occasionally
  • Busy schedules
  • Anyone who wants low-maintenance sourdough

Why people like it:

  • Very low upkeep
  • Less discard
  • More flexibility

Things to keep in mind:

  • You’ll need to “wake it up” before baking
  • It may need a day or two to become active
  • It can feel slower when you’re learning

The fridge is often the easiest option long-term once your starter feels established.

So… what’s easiest for beginners?

  • If you’re actively learning and baking a few times a week, the counter is usually easiest at first.
  • If you want simple, flexible, and low effort, the fridge is easiest overall.

Many beginners start on the counter, then move their starter to the fridge once they feel confident.

Can you switch between counter and fridge?

Yes. Anytime.

To move from counter to fridge:
Feed your starter, let it rise a bit, then place it in the fridge.

To move from fridge to counter:
Take it out, let it warm slightly, feed it, and give it time to become active again.

That’s it.

Feeding your starter

Feeding your starter simply means giving it fresh flour and water so the wild yeast and bacteria can stay active.

You are not keeping it alive hour by hour — you’re refreshing it so it has enough food to grow.

What you need

  • Sourdough starter
  • Flour
  • Water
  • A clean jar
  • A spoon or spatula

Unbleached all-purpose flour works great. Filtered water is ideal, but tap water is usually fine.

How much starter to keep

More starter does not mean better results.

Keeping about 25–50 grams is plenty for most home bakers. Smaller amounts are easier to manage, create less discard, and stay cleaner.

If you have more than that in your jar, remove the extra before feeding. That removed portion is called discard.

Feeding ratios explained

Ratios simply describe how much starter, flour, and water you’re using. There’s no perfect ratio — different ratios serve different purposes.

The simplest beginner ratio

1 part starter
1 part flour
1 part water

Often written as 1:1:1

Example:

  • 25g starter
  • 25g flour
  • 25g water

Why this works:

  • Easy to remember
  • Keeps your starter balanced
  • Great for everyday feeding

If you’re new, this ratio works beautifully.

When your starter needs more food

If your starter smells very sour, feels weak, or has been sitting in the fridge, it may need more fresh food.

1 part starter
2 parts flour
2 parts water

Example:

  • 20g starter
  • 40g flour
  • 40g water

Why people use this:

  • Reduces excess acidity
  • Helps build strength
  • Great for waking up a fridge starter

Thickness & hydration

Your starter does not need to be runny. Many bakers prefer a thicker starter.

Aim for a thick pancake batter or soft dough consistency.

Thicker feedings often:

  • Ferment more slowly
  • Smell milder
  • Are easier to predict

If your starter rises quickly and collapses fast, a thicker feeding can help.

How often to feed

If your starter lives on the counter:
Feed about once every 24 hours.

If your starter lives in the fridge:
Feed about once a week. Before baking, take it out, feed it, and give it time to become active.

How to know your starter is healthy

A healthy starter will usually:

  • Rise after feeding
  • Look bubbly or airy
  • Smell pleasantly tangy

It does not need to double every single time to be healthy, especially when it’s young.

The takeaway

There is no single correct setup for sourdough.

Choose the counter or fridge based on your life.
Choose feeding ratios that feel manageable.
Consistency matters more than precision.

If your starter is fed, alive, and slowly getting stronger — you’re doing it right.

Sourdough should fit into your life, not the other way around.