Learn - Sourdough starter not bubbling

Short answer: yes—but not from scratch, and not in the same way we just adjusted “hooch.”

This one is already very close to the standard, so we don’t want to throw it away. We just need to tighten structure and remove repetition creep so it matches the newer “short answer → deeper dive” style.

Right now the issues are subtle but important:

  • The reassurance is repeated in 3–4 places

  • “Let’s go through…” + “First:” + section headings all compete for attention

  • It’s slightly long-winded in the middle sections

  • The structure isn’t as clean as the hooch page we just refined

So yes: we refine, not rewrite completely.


Here’s the cleaned, aligned version:


Why isn’t my sourdough starter bubbling?

If your sourdough starter isn’t bubbling yet, don’t panic.

This is one of the most common stages in sourdough, especially with dehydrated starters or cultures that are still waking up.

A lack of bubbles doesn’t automatically mean something is wrong. In most cases, it just means your starter is still developing strength or adjusting to its environment.


The short answer

A sourdough starter may not show visible bubbles when it is:

  • too cold

  • still early in development

  • inconsistently fed

  • or going through a quiet stabilising phase

It is often still active, even if you can’t see it yet.


What bubbling actually means

Bubbles are simply a by-product of fermentation.

They form when wild yeast and bacteria consume flour and release gases.

But here’s what often gets missed:

👉 A starter can still be active even without obvious bubbles.

Early activity often shows up in subtle ways first:

  • slight rise or fall

  • changes in smell

  • thicker or looser texture

  • small scattered bubbles (not a full rise yet)

So bubbling is just one signal—not the only one.


Why your starter might not be bubbling yet

1. Temperature is too low

This is the most common reason.

Starter activity slows significantly in cool environments.

Ideal range:
24–27°C

Below this, fermentation continues—it just becomes harder to see.


2. It’s still too early

Especially with dehydrated starters, early stages can look completely inactive.

It’s common to see:

  • little to no activity at first

  • then a sudden shift after a few days

This is normal development.


3. Feeding is inconsistent

Starters rely on routine.

Constantly changing ratios or reacting to every small change can slow progress.

Consistency matters more than adjustment in the early stages.


4. Flour isn’t supporting activity well

Some flours are more nutrient-dense than others.

If things feel slow, try:

  • plain or bread flour as your base

  • a small portion of wholemeal or rye for support

No need to overhaul everything—just support fermentation.


5. It’s in a quiet phase

Starters often go through a stage where early activity disappears temporarily.

This is part of stabilising into a predictable culture.

It doesn’t mean failure—it means transition.


What you should do

Keep it simple:

  • maintain a warm, stable spot

  • stick to one feeding routine

  • use consistent flour

  • give it time without over-adjusting

Most “stuck” starters respond to stability, not intervention.


What NOT to do

Avoid:

  • changing feeding ratios every day

  • restarting too early

  • adding sugar or commercial yeast

  • overfeeding to force activity

Starters don’t respond to urgency—they respond to consistency.


When to be concerned

Only a few signs suggest a real problem:

  • visible mould (any coloured or fuzzy growth)

  • strong rotten smell

  • no change at all after consistent care over time

If none of these are present, your starter is almost always still developing.


Nikki’s note

Most starters that “aren’t bubbling” are not failing—they’re just not warm enough or not stable yet.

Once conditions settle, they often become predictable and strong quite quickly.

The biggest shift usually isn’t the starter—it’s stepping back and letting it establish its rhythm.


Quick summary

If your starter isn’t bubbling:

  • it’s usually temperature

  • timing

  • or consistency

  • not failure


Next step

If you’re still unsure:

My starter isn’t doubling

What is hooch?

Why does my starter smell strange?