Stiff Sourdough Starter (10 g) – Fresh, Active, and Ready to Bake
Stiff Sourdough Starter (40% Hydration)
This is the starter we trust to get to your door alive and kicking. It is strong, steady, and designed for bakers who care about reliability. Each portion is hand-mixed with certified organic Canadian flour and maintained at 40 percent hydration to keep it resilient during shipping. It arrives active and ready to feed. You can use it to mix your dough the very same day.
We prepare and pack each starter fresh on Mondays and ship express so it arrives in time for weekend baking. Your culture is delivered in a 45 ml screw-top test tube. Once empty, you can reuse the tube to store a spare portion of your starter or to track dough fermentation with the aliquot method.
What’s Included
- 10 grams of stiff sourdough starter (40 percent hydration)
- Reusable 45 ml screw-top test tube
- Starter feeding instructions
- Access to a step-by-step sourdough recipe and care guide
How to Use It
- Feed it once: Mix with flour and water using the instructions provided
- Make dough: Your starter is ready to use the same day you feed it
- Keep it alive: Store in the fridge and feed it weekly
Track Your Rise

The included test tube can also be used to track bulk fermentation. Add 10 to 12 grams of mixed dough and mark the starting level. When the dough rises to the top of the tube, your dough has likely tripled and is ready to shape. It is a simple way to build timing and confidence into your baking.
Sourdough That Fits Your Rhythm
This stiff starter is ideal for anyone who wants to bake sourdough without waiting days for activation. Whether you are just beginning or coming back to the craft, it meets you where you are, and helps you move forward with confidence.
Orders placed before Monday at 9:00 a.m. Eastern will ship the same day.