Take the guesswork out of your sourdough starter with app-controlled smart fermentation. For first time bakers and sourdough pros alike
Check on Kickstarter




If you’ve ever made sourdough, you know that a sourdough starter is a living, breathing thing.

Starters become more flavorful the longer they’re kept alive, but it takes a lot of maintenance to keep them going.

But what if there was a way to make sure your starter was perfect for YOUR schedule?

Introducing, SourFriend: the smart AI fermentation control device that tells you exactly what’s happening with your sourdough starter!

With SourFriend, your sourdough starter adjusts to your schedule, so you can bake the perfect loaf when you’re ready.


Take control of your sourdough starter today with Sourfriend, only on Kickstarter!


Normally, feeding a starter means planning for the right feeding time and ambient temperature for your starter to be at peak when it’s time to bake. But not anymore.

With SourFriend’s AI fermentation control technology, you can control the speed of your starter’s growth so it’s ready when you are.


SourFriend also has 4 built-in sensors to monitor temperature, humidity and rise height, giving you an accurate timer for peak fermentation.

SourFriend’s highly precise AI temperature control algorithm uses these sensors to slow down the growth of your starter based on your timer settings.

Set it and forget it! SourFriend’s temperature control system will take care of the rest.

Then, once your starter reaches the perfect condition for baking, SourFriend sends you a notification so you can prepare the perfect loaf.



Keeping your starter alive through regular feeding is key to a delicious loaf of sourdough. But knowing when to feed your starter is easier said than done.

With SourFriend’s smart feeding timer, you’ll get notifications telling you exactly when it’s time to feed your starter.

Then, once your starter is done fermenting, SourFriend will switch to its refrigeration mode to keep your starter alive for as long as possible.

No more worrying about having to keep your starter alive. Just set SourFriend to match your schedule and that’s it!



Just like how our sourdough starters develop a unique profile of their own, SourFriend is designed with a touch of personality and uniqueness.

Whether it’s for cleaning or for keeping your starter in the fridge, SourFriend’s storage container is user-friendly and easy to remove from the device.

Then, while your starter is fermenting inside SourFriend, you can take a look at the LCD screen to get a quick overview of how your starter is doing.


The app even comes with a handy history feature, so you can check your successful starters for reference for your next bake.

And with energy-efficient refrigeration technology, SourFriend maintains the same temperature with little electrical demand for a stable fermentation environment.

Befriend your starter with SourFriend and make your perfect sourdough today!


SourFriend uses a thermoelectric module for precise temperature control within ±0.5 °C, providing an ideal environment for fermentation regardless of ambient conditions. Then, a thermal sensor and height sensor combine to track the fermentation (temperature, size changes) of your starter, sustaining a balance of yeast and bacteria while providing an accurate prediction of the optimal fermentation time.




① Place your starter in the container, then place the container in SourFriend.
- SourFriend’s sensors will automatically detect your starter’s temperature and surrounding environment.

② Use the SourFriend app to set your target fermentation time.
- “I want to make my dough tomorrow at 9am” → Use the LCD display to enter your time setting → SourFriend will adjust the fermentation conditions automatically!
- You can also use the automatic mode to let SourFriend figure out the optimal fermentation time for you.

③ Use the LCD display to see how your starter is doing.
- Colors, icons and timers of all kinds will tell you everything you need to know.
- Use the app, or just check SourFriend’s display manually!

④ Once you get the peak time notification, it’s time to start making your dough!
- SourFriend sends you an app notification once you’ve reached the perfect starter timing.
- No more second guessing yourself!
- Just make your perfect sourdough! We’ll handle the rest.












