A walk through, and review, of the Catalyst Fermentation System by Craft-a-Brew before, during, and after fermenting a batch of wort.
![](https://beernbbqbylarry.com/wp-content/uploads/2017/04/the-catalyst-fermentation-system-1-880x660.jpg)
A walk through, and review, of the Catalyst Fermentation System by Craft-a-Brew before, during, and after fermenting a batch of wort.