This adjustable magnetic stirrer is ideally used with the stir bar.
Simply place your yeast propagation flask on top of the stir plate and drop in the stir bar. Switch on the machine and adjust the spin speed.
If you are new to brewing you will soon learn that healthy yeast makes better beer.
The best place to start with making healthy yeast is to build up their numbers. We like to use Brewers Friends Yeast Calculator to find out how much yeast you need to build up to get the best possible beer fermented.
In combination with a 3 Litre Conical Erlenmeyer flask, you will be able to make a varying range of yeast starters depending on your batch size.