02/15/2026
Sometimes sourdough starters feel a little mysterious.
They rise really well for awhile, and all of the sudden, it feels like theyâre on strike.
Iâve been there, and as frustrating as it is, itâs usually not forever. With some small tweaks, it typically perks back up.
When my starter gets sluggish, here are the tricks I use to give it a boost:
First, I check the temperature.
Starters LOVE warmth, and around 75â80°F is the sweet spot for strong, happy fermentation.
Sometimes your starter appears to be sluggish just because itâs cold, not because itâa weak.
Second (and probably the most important), I tighten up my feeding timing.
Feeding your starter before it fully deflates helps the yeast stay active and well-fed instead of running out of food and going into starvation mode.
Third, I experiment with swapping 50% of the flour for whole wheat or rye.
This doesnt need to be long-term, but these flours can give your starter a boost when itâs struggling.
A sluggish starter usually isnât dead, it just needs some TLC!
Save this for the next time your starter is seeming a little under the weathere