Keeping a sourdough starter alive just got much easier
A smart countertop device from FirstBuild and King Arthur Baking takes the guesswork out of maintaining a healthy sourdough starter, and it’s the perfect Father’s Day gift if your dad is into baking – or thinking about taking it up.
Sourdough baking has enjoyed a remarkable resurgence in recent years, evolving from a pandemic-era hobby into a lasting movement among home bakers. Yet for many people, the biggest obstacle isn’t baking the bread itself — it’s maintaining the starter.
Feedings need to happen on schedule, temperatures matter, discard can feel wasteful, and a neglected starter can quickly become an expensive science experiment. For many would-be bakers, that complexity is enough to prevent them from ever getting started.
That’s the problem the Sourdough Sidekick aims to solve.
Developed by FirstBuild, the innovation hub behind products like the Opal Nugget Ice Maker, and co-created with King Arthur Baking Company, the Sourdough Sidekick is a countertop appliance designed to automate sourdough starter maintenance while giving bakers greater control over timing and consistency.
After spending time using the device in my own kitchen, I came away genuinely impressed.
Why Sourdough Starters Intimidate New Bakers
Traditional sourdough baking requires maintaining a living culture of flour and water that must be fed regularly to remain healthy and active.
For experienced bakers, this routine becomes second nature. For beginners, however, it can feel daunting.
Questions quickly arise:
- Did I feed it enough?
- Did I feed it too much?
- Is my kitchen too cold?
- Is it ready to bake with?
- What do I do with all the discard?
The Sourdough Sidekick tackles these questions head-on by automating much of the maintenance process while still preserving the craft and satisfaction of baking with natural sourdough.
A Smart Approach To Starter Management
The feature I found myself using most was the appliance’s Auto Mode, which is also likely to be the most popular setting for new bakers.
The concept is simple. Tell the Sidekick how much starter you need and when you need it, and the device handles the rest.
Fill the flour hopper and water reservoir, add a small amount of existing starter, and the machine automatically manages the feeding schedule. It even monitors ambient kitchen temperature and adjusts feedings accordingly.
Rather than performing large feedings, the Sidekick uses a micro-feeding approach to gradually build the starter, helping maintain activity and reducing waste.
The result is a healthy, active starter ready when you want to bake.
For me, this was perhaps the biggest advantage. Instead of trying to remember feeding schedules throughout the week, I could simply plan ahead and have starter ready at a convenient day and time.
More Control For Experienced Bakers
While Auto Mode is designed for convenience, the Sidekick also includes two additional operating modes.
Ratio Mode
Ratio Mode follows more traditional feeding schedules and ratios while still automating the process. This strikes a nice balance between convenience and established sourdough practices.
Custom Mode
For experienced bakers who enjoy experimentation, Custom Mode allows precise control over flour quantities, water quantities, and feeding timing.
This flexibility means the appliance can grow with a baker’s experience rather than becoming obsolete once basic skills are mastered.
Living With The Sourdough Sidekick
One of my concerns before using the appliance was whether it would be difficult to maintain or clean.
Thankfully, that wasn’t the case.
The glass crock lifts out easily, the mixing paddle is straightforward to clean, and refilling the flour and water reservoirs is simple. There are no complicated cleaning routines or awkward maintenance procedures.
The unit also occupies less counter space than I initially expected.
As with any sourdough starter, I found it helpful to keep the appliance away from direct sunlight, but otherwise it integrated naturally into the kitchen.
What stood out most was how approachable the entire process felt. The Sidekick removes much of the anxiety surrounding starter maintenance while leaving the enjoyable parts of sourdough baking untouched.
Making The Most Of Discard
One of the common frustrations among sourdough bakers is discard.
The Sidekick’s feeding system significantly reduces discard requirements, but for bakers who do generate some excess starter, King Arthur Baking provides numerous ways to put it to good use.
From pancakes and crackers to waffles and other baked goods, discard becomes an ingredient rather than a waste product. The included guidance and recipes help ensure that very little goes to waste.
The Innovation Behind The Product
The Sourdough Sidekick’s development story is almost as interesting as the product itself.
The concept was developed through FirstBuild’s collaborative innovation model and refined alongside a community of bakers and sourdough enthusiasts. When the project launched on Indiegogo in 2025, it reached its funding goal in just 12 minutes.
That enthusiasm reflected a genuine demand for a solution to one of home baking’s most persistent challenges.
The partnership with King Arthur Baking Company adds additional credibility, combining appliance innovation with centuries of baking expertise.
A Thoughtful Father’s Day Gift
One unexpected benefit of the Sourdough Sidekick is that it makes a surprisingly compelling gift for the aspiring baker.
When I mentioned the device to my father-in-law, he immediately understood the appeal. He had previously experimented with sourdough baking but eventually abandoned it because keeping a starter healthy required more time and attention than he could realistically commit to.
That reaction highlights exactly why the Sidekick exists. Many people are interested in sourdough baking, but the ongoing maintenance of the starter becomes a barrier. By automating that process, the device makes the hobby accessible again.
With Father’s Day approaching, the Sidekick strikes an unusual balance between practicality and novelty. It is not a gadget that ends up forgotten in a cupboard; it actively enables a hobby that many people would otherwise struggle to maintain.
For fathers, grandfathers, and anyone who has always wanted to bake sourdough but found the starter management intimidating, it could be one of the most thoughtful kitchen gifts of the year.
Review Verdict
Pros
- Extremely easy to use
- Flexible scheduling
- Healthy, reliable starter production
- Temperature-aware feeding adjustments
- Minimal cleaning required
- Reduces starter maintenance anxiety
- Suitable for both beginners and experienced bakers
Cons
- Premium price point at $179.99
- Best value for people who bake regularly
Final Thoughts
The Sourdough Sidekick succeeds because it solves a real problem.
Rather than trying to reinvent sourdough baking, it removes one of the biggest barriers preventing people from enjoying it in the first place.
For experienced bakers, it offers convenience and consistency. For beginners, it removes much of the intimidation factor surrounding starter maintenance.
Most importantly, it makes sourdough baking feel accessible.
If you’ve ever been curious about baking sourdough but were put off by the commitment required to maintain a starter, the Sourdough Sidekick may be one of the most practical kitchen innovations you’ll buy this year.