Healthy yeast starters make great beer, and the best way to make healthy yeast starters is with a stirplate. A stir plate keeps your yeast suspended and wort aerated while your starter grows to ensure fast, efficient and predictable growth rates, saving you time and money while producing the healthiest possible yeast.
Digital Homebrew's Digital Stirplate is a unique digitally controlled magnetic stirrer that's designed to help home brewers to grow healthy, consistent yeast starters.
Traditional analog stirplates have a few inherent drawbacks that can make them tricky to operate. Without any active feedback, they often require a high power setting to get them to initially start spinning (sometimes over 50% on their speed dial). Once they begin spinning, it's hard to tell just how far you're able to safely dial the speed back down without going too slow and stalling the motor. This issue is only exacerbated by the fact that yeast slurries are opaque so it's often impossible to see just how fast (or slow) your stirbar is spinning.
From the beginning, the Digital Stir Plate was designed to make yeast starters easy. Unlike traditional analog stirrers, the Digital Stir Plate uses a PID control loop (like the cruise control in your car) to hold your desired stirring speed, even when external factors are at play. Combined with our simple "Up/Down" button interface, the built in circuitry makes it simple to dial up the exact stirring speed you want in increments of 100rpm.
This unique "set and forget" method of speed control promotes consistency across your starters by allowing you to dial up exactly the same speed each and every time you grow a starter, therefore helping to stabilise variables like wort aeration, temperature increase or perhaps even cell stress levels that could impact the quality and growth rate of your starters. By keeping your stirring speed in check you will be able to achieve more consistent pitching rates, allowing you to brew your favourite batch with even more consistency!
While the digital stirplate is only small in size, it really packs a punch in its ability to stir large starters. Using the included 30mm stir bars you'll be able to stir a vortex all the way to the bottom of a 5L flask that physically dwarfs the stirplate. That being said, due to the precise nature of the digital control system the Digital Stir Plate also really shines at stirring small starters at slow and consistent speeds. Even with the very same 30mm stir bar that works with 5L starters.
Here's a video of the digital stirplate in action:
...and here's another video demonstrating the digital stirplate with different sizes of flasks, up to 5000ml:
What about quality, will it last?
The Digital Stirplate is designed and assembled in Australia. The front panel is splash proof and the case is professionally CNC cut and screen printed. The internals are securely bolted together and the case also has mounting flanges on the sides so you can easily affix it to a brewing bench for added stability. Each Digital Stirplate is individually tested before shipping and comes with DigitalHomebrew's "NO BS" lifetime warranty. We really want this stir plate to serve you for a lifetime, and if there's anything inferior about it, we WANT to know! So if anything goes wrong, just send it back with proof of purchase and we will gladly refund your money, repair your stir plate, or replace it with a new one!
News: As of January 2014, we've been running round-the-clock longevity tests to verify the durability of our stir plates. Over two years later it's still stirring away happily!
Each Digital Stir Plate is provided with two 30mm stir bars. This means if you lose one you're still able to keep on brewing while you order a replacement. Also, you can use the second stir bar's magnetic attraction to slide the other stir bar out of your flask before you pitch your starter into the fermentor. That way you won't accidentally pour it in with the wort and lose your stir bar for a few weeks!
- 1 x Digital Stir Plate
- 2 x 30mm PTFE Coated, AlNiCo Magnetic Stirbars
- 1 x 12v Power Adapter with connectors for AU, US, UK and EU power outlets depending on your location.