A clay-based clarifying agent used in winemaking and beer brewing. Because it is negatively charged, it binds and removes haze forming proteins that are positively charged. It does not stop the fermentation process and can be used in wine while wine is still busy fermenting.
Want to know more about how Bentonite works? Have a look at this video: 4 Wine/Mead Clearing Method Test
If you are looking for an alternative, we also have Gelatine that works great for clearing a hazy beer.