Last reviewed: 2026-06-05
Starter rise rescue
Sourdough starter not rising after feeding
Find out whether your starter is too cold, underfed, too young, overly acidic, or simply being measured in the wrong jar.
If a mature sourdough starter is not rising after feeding, the most common causes are low temperature, too little fresh flour, weak flour, too much acidity, or an immature starter. Keep it around 75F, feed by weight, and use some whole grain flour for several cycles.
Starter rise rescue checklist
What changed recently?
Check each condition that applies. The score points to the most likely reason your starter is flat.
The rescue setup
Use a straight-sided jar, mark the level after feeding, and keep the starter in a warm spot around 75F.
Feed by weight. A 1:2:2 feeding gives the culture more food than 1:1:1 and can reduce excess acidity.
What to track for 3 feedings
Record feed ratio, temperature, flour type, peak height, and time to peak.
If bubbles appear but height does not change, the culture may be active but too weak or too wet to hold structure.
FAQ
Why is my starter bubbling but not rising?+
It may be active but too weak, too liquid, too acidic, or measured in a jar that makes height change hard to see.
How warm should a sourdough starter be to rise?+
A warm room around 75F is a useful target. Cold kitchens can slow a starter dramatically.
Should I use whole wheat or rye flour to revive starter?+
A small amount of whole grain flour can help because it brings more nutrients and microbial activity.