When brewing it is very important to pitch enough yeast and to ensure that the yeast is healthy and ready to do the job you want it to do. The easiest way to achieve this goal is to make a yeast starter using a stir plate.
Making your yeast starter using a stir plate helps you to:
– quickly reach a high number of active yeast cells
– reduce the likelihood of infections
– improve the taste of your brew by promoting a healthy fermentation and consequently diminish the amount of offensive flavors stemming from the presence of excess sulfur compounds, fusel alcohols and diacetyl produced by stressed yeast.
This can be achieved by using an laboratory grade stir plate, but unfortunately these units are very expensive, and quite often bulky and noisy.
The BrewSci stir plate model Alu03 ‘Brewhammer’ measures 4 x 17 x 11.5 cm (1.6″ x 6.8″ x 4.6″), and is able to easily carry and stir the contents of flasks up to 5 liters in size, and stand securely on the table thanks to its four soft feet.
While Alu03 ‘Brewhammer’ was designed with brewers in mind, it is so powerful that it can stir pure glycerol/glycerine (as shown in the first picture), which has a viscosity 1500 times higher than water. This makes it a great tool for people who make their own E-liquid.
If you have a suitable container then you can even stir amounts significantly higher than 5L – here is a video of the Alu03 ‘Brewhammer’ stirring 20L water:
The Alu03 stir plate has a sturdy aluminum enclosure which makes it the perfect companion in the workshop. Alu03 contains a strong 12V motor and two large and powerful neodymium magnets of grade N52, the highest grade of neodymium magnet available, superior to the magnets found in most other stir plates.
The stir plate is powered by an external power supply – make sure to pick the one that fits the power outlets in the country you reside in. If you need more than one power supply then these can be found in our shop.
When buying a BrewSci Alu03 ‘BrewHammer’ stir plate you also get two high quality Teflon coated stir bars, one egg-shaped and one with a pivot ring, so you can use the one that best suits your flask. The second stir bar can be used to avoid that the stir bar in the yeast starter ends up in your fermenter. Please note that the flask is not included.
One BrewSci Alu03 stir plate
One 2.5 cm (1″) Teflon coated stir bar with a pivot ring.
One 3.0 cm (1.2″) egg-shaped Teflon coated stir bar.
One 12V Power adapter.